diff --git a/superset/examples/configs/charts/Superset Community Dashboard/100_Most_Stale_Issues_83.yaml b/superset/examples/configs/charts/Superset Community Dashboard/100_Most_Stale_Issues_83.yaml
index fa57a8d7ea..1f916ef93c 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/100_Most_Stale_Issues_83.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/100_Most_Stale_Issues_83.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: 100 Most Stale Issues
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/100_Most_Stale_PRs_82.yaml b/superset/examples/configs/charts/Superset Community Dashboard/100_Most_Stale_PRs_82.yaml
index edfb684454..9ee5878e4a 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/100_Most_Stale_PRs_82.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/100_Most_Stale_PRs_82.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: 100 Most Stale PRs
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/10_Worst_Files_76.yaml b/superset/examples/configs/charts/Superset Community Dashboard/10_Worst_Files_76.yaml
index 43cbd14422..cf143e101a 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/10_Worst_Files_76.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/10_Worst_Files_76.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: 10 Worst Files
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/Backlog_-_ESLint_75.yaml b/superset/examples/configs/charts/Superset Community Dashboard/Backlog_-_ESLint_75.yaml
index c3a2f7be8f..8955768adf 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/Backlog_-_ESLint_75.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/Backlog_-_ESLint_75.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: Backlog - ESLint
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/Debt_Timeline_by_Rule_74.yaml b/superset/examples/configs/charts/Superset Community Dashboard/Debt_Timeline_by_Rule_74.yaml
index 01473fa66f..56c6b2b33c 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/Debt_Timeline_by_Rule_74.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/Debt_Timeline_by_Rule_74.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: Debt Timeline (by Rule)
 description: null
 certified_by: null
@@ -28,7 +12,7 @@ params:
   x_axis_sort_series: name
   x_axis_sort_series_ascending: true
   metrics:
-  - expressionType: SIMPLE
+  - aggregate: SUM
     column:
       advanced_data_type: null
       certification_details: null
@@ -46,22 +30,27 @@ params:
       type_generic: 0
       verbose_name: null
       warning_markdown: null
-    aggregate: SUM
-    sqlExpression: null
     datasourceWarning: false
+    expressionType: SIMPLE
     hasCustomLabel: false
     label: SUM(Count)
     optionName: metric_7lqddvjwzrn_1gt26m0c22z
+    sqlExpression: null
   groupby:
   - Rule
   adhoc_filters:
-  - clause: WHERE
-    comparator: No filter
-    expressionType: SIMPLE
-    operator: TEMPORAL_RANGE
+  - expressionType: SIMPLE
     subject: Timestamp
+    operator: TEMPORAL_RANGE
+    comparator: Last quarter
+    clause: WHERE
+    sqlExpression: null
+    isExtra: false
+    isNew: false
+    datasourceWarning: false
+    filterOptionName: filter_z5egtg6kq4_8g6cdcsuy84
   order_desc: true
-  row_limit: 1000
+  row_limit: 10000
   truncate_metric: true
   show_empty_columns: true
   comparison_type: values
@@ -91,9 +80,9 @@ params:
   extra_form_data: {}
   dashboards:
   - 9
-query_context: '{"datasource":{"id":21,"type":"table"},"force":false,"queries":[{"filters":[{"col":"Timestamp","op":"TEMPORAL_RANGE","val":"No
-  filter"}],"extras":{"having":"","where":""},"applied_time_extras":{},"columns":[{"columnType":"BASE_AXIS","sqlExpression":"Timestamp","label":"Timestamp","expressionType":"SQL"},"Rule"],"metrics":[{"expressionType":"SIMPLE","column":{"advanced_data_type":null,"certification_details":null,"certified_by":null,"column_name":"Count","description":null,"expression":null,"filterable":true,"groupby":true,"id":854,"is_certified":false,"is_dttm":false,"python_date_format":null,"type":"INT","type_generic":0,"verbose_name":null,"warning_markdown":null},"aggregate":"SUM","sqlExpression":null,"datasourceWarning":false,"hasCustomLabel":false,"label":"SUM(Count)","optionName":"metric_7lqddvjwzrn_1gt26m0c22z"}],"orderby":[[{"expressionType":"SIMPLE","column":{"advanced_data_type":null,"certification_details":null,"certified_by":null,"column_name":"Count","description":null,"expression":null,"filterable":true,"groupby":true,"id":854,"is_certified":false,"is_dttm":false,"python_date_format":null,"type":"INT","type_generic":0,"verbose_name":null,"warning_markdown":null},"aggregate":"SUM","sqlExpression":null,"datasourceWarning":false,"hasCustomLabel":false,"label":"SUM(Count)","optionName":"metric_7lqddvjwzrn_1gt26m0c22z"},false]],"annotation_layers":[],"row_limit":1000,"series_columns":["Rule"],"series_limit":0,"order_desc":true,"url_params":{},"custom_params":{},"custom_form_data":{},"time_offsets":[],"post_processing":[{"operation":"pivot","options":{"index":["Timestamp"],"columns":["Rule"],"aggregates":{"SUM(Count)":{"operator":"mean"}},"drop_missing_columns":false}},{"operation":"rename","options":{"columns":{"SUM(Count)":null},"level":0,"inplace":true}},{"operation":"flatten"}]}],"form_data":{"datasource":"21__table","viz_type":"echarts_timeseries_line","slice_id":74,"x_axis":"Timestamp","x_axis_sort_asc":true,"x_axis_sort_series":"name","x_axis_sort_series_ascending":true,"metrics":[{"expressionType":"SIMPLE","column":{"advanced_data_type":null,"certification_details":null,"certified_by":null,"column_name":"Count","description":null,"expression":null,"filterable":true,"groupby":true,"id":854,"is_certified":false,"is_dttm":false,"python_date_format":null,"type":"INT","type_generic":0,"verbose_name":null,"warning_markdown":null},"aggregate":"SUM","sqlExpression":null,"datasourceWarning":false,"hasCustomLabel":false,"label":"SUM(Count)","optionName":"metric_7lqddvjwzrn_1gt26m0c22z"}],"groupby":["Rule"],"adhoc_filters":[{"clause":"WHERE","comparator":"No
-  filter","expressionType":"SIMPLE","operator":"TEMPORAL_RANGE","subject":"Timestamp"}],"order_desc":true,"row_limit":1000,"truncate_metric":true,"show_empty_columns":true,"comparison_type":"values","annotation_layers":[],"forecastPeriods":10,"forecastInterval":0.8,"x_axis_title_margin":15,"y_axis_title_margin":15,"y_axis_title_position":"Left","sort_series_type":"sum","color_scheme":"supersetColors","seriesType":"line","only_total":true,"opacity":0.2,"markerSize":6,"show_legend":true,"legendType":"scroll","legendOrientation":"top","x_axis_time_format":"smart_date","rich_tooltip":true,"tooltipTimeFormat":"smart_date","y_axis_format":"SMART_NUMBER","truncateXAxis":true,"y_axis_bounds":[null,null],"extra_form_data":{},"dashboards":[9],"force":false,"result_format":"json","result_type":"full"},"result_format":"json","result_type":"full"}'
+query_context: '{"datasource":{"id":21,"type":"table"},"force":false,"queries":[{"filters":[{"col":"Timestamp","op":"TEMPORAL_RANGE","val":"Last
+  quarter"}],"extras":{"having":"","where":""},"applied_time_extras":{},"columns":[{"columnType":"BASE_AXIS","sqlExpression":"Timestamp","label":"Timestamp","expressionType":"SQL"},"Rule"],"metrics":[{"aggregate":"SUM","column":{"advanced_data_type":null,"certification_details":null,"certified_by":null,"column_name":"Count","description":null,"expression":null,"filterable":true,"groupby":true,"id":854,"is_certified":false,"is_dttm":false,"python_date_format":null,"type":"INT","type_generic":0,"verbose_name":null,"warning_markdown":null},"datasourceWarning":false,"expressionType":"SIMPLE","hasCustomLabel":false,"label":"SUM(Count)","optionName":"metric_7lqddvjwzrn_1gt26m0c22z","sqlExpression":null}],"orderby":[[{"aggregate":"SUM","column":{"advanced_data_type":null,"certification_details":null,"certified_by":null,"column_name":"Count","description":null,"expression":null,"filterable":true,"groupby":true,"id":854,"is_certified":false,"is_dttm":false,"python_date_format":null,"type":"INT","type_generic":0,"verbose_name":null,"warning_markdown":null},"datasourceWarning":false,"expressionType":"SIMPLE","hasCustomLabel":false,"label":"SUM(Count)","optionName":"metric_7lqddvjwzrn_1gt26m0c22z","sqlExpression":null},false]],"annotation_layers":[],"row_limit":10000,"series_columns":["Rule"],"series_limit":0,"order_desc":true,"url_params":{},"custom_params":{},"custom_form_data":{},"time_offsets":[],"post_processing":[{"operation":"pivot","options":{"index":["Timestamp"],"columns":["Rule"],"aggregates":{"SUM(Count)":{"operator":"mean"}},"drop_missing_columns":false}},{"operation":"rename","options":{"columns":{"SUM(Count)":null},"level":0,"inplace":true}},{"operation":"flatten"}]}],"form_data":{"datasource":"21__table","viz_type":"echarts_timeseries_line","slice_id":74,"x_axis":"Timestamp","x_axis_sort_asc":true,"x_axis_sort_series":"name","x_axis_sort_series_ascending":true,"metrics":[{"aggregate":"SUM","column":{"advanced_data_type":null,"certification_details":null,"certified_by":null,"column_name":"Count","description":null,"expression":null,"filterable":true,"groupby":true,"id":854,"is_certified":false,"is_dttm":false,"python_date_format":null,"type":"INT","type_generic":0,"verbose_name":null,"warning_markdown":null},"datasourceWarning":false,"expressionType":"SIMPLE","hasCustomLabel":false,"label":"SUM(Count)","optionName":"metric_7lqddvjwzrn_1gt26m0c22z","sqlExpression":null}],"groupby":["Rule"],"adhoc_filters":[{"expressionType":"SIMPLE","subject":"Timestamp","operator":"TEMPORAL_RANGE","comparator":"Last
+  quarter","clause":"WHERE","sqlExpression":null,"isExtra":false,"isNew":false,"datasourceWarning":false,"filterOptionName":"filter_z5egtg6kq4_8g6cdcsuy84"}],"order_desc":true,"row_limit":10000,"truncate_metric":true,"show_empty_columns":true,"comparison_type":"values","annotation_layers":[],"forecastPeriods":10,"forecastInterval":0.8,"x_axis_title_margin":15,"y_axis_title_margin":15,"y_axis_title_position":"Left","sort_series_type":"sum","color_scheme":"supersetColors","seriesType":"line","only_total":true,"opacity":0.2,"markerSize":6,"show_legend":true,"legendType":"scroll","legendOrientation":"top","x_axis_time_format":"smart_date","rich_tooltip":true,"tooltipTimeFormat":"smart_date","y_axis_format":"SMART_NUMBER","truncateXAxis":true,"y_axis_bounds":[null,null],"extra_form_data":{},"dashboards":[9],"force":false,"result_format":"json","result_type":"full"},"result_format":"json","result_type":"full"}'
 cache_timeout: null
 uuid: 93f3714b-8401-415e-9d4c-2c8806dfc02f
 version: 1.0.0
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/GitHub_commits_by_author_90_days_90.yaml b/superset/examples/configs/charts/Superset Community Dashboard/GitHub_commits_by_author_90_days_90.yaml
index c169279093..2aecff1d49 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/GitHub_commits_by_author_90_days_90.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/GitHub_commits_by_author_90_days_90.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: GitHub commits by author (90 days)
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/Low_Hanging_Fruit_by_File_80.yaml b/superset/examples/configs/charts/Superset Community Dashboard/Low_Hanging_Fruit_by_File_80.yaml
index 2cca719167..5dd4786db8 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/Low_Hanging_Fruit_by_File_80.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/Low_Hanging_Fruit_by_File_80.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: Low Hanging Fruit by File
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/Low_Hanging_Fruit_by_Rule_79.yaml b/superset/examples/configs/charts/Superset Community Dashboard/Low_Hanging_Fruit_by_Rule_79.yaml
index 497fda8b72..36e7e4c913 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/Low_Hanging_Fruit_by_Rule_79.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/Low_Hanging_Fruit_by_Rule_79.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: Low Hanging Fruit by Rule
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/PR_Staleness_Distribution_85.yaml b/superset/examples/configs/charts/Superset Community Dashboard/PR_Staleness_Distribution_85.yaml
index 97f1f20704..c9287fa92e 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/PR_Staleness_Distribution_85.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/PR_Staleness_Distribution_85.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: PR Staleness Distribution
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/Staleness_distribution_84.yaml b/superset/examples/configs/charts/Superset Community Dashboard/Staleness_distribution_84.yaml
index 0efa150ce6..a83bc78513 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/Staleness_distribution_84.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/Staleness_distribution_84.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: Staleness distribution
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/Ten_Worst_Violations_ESLint_77.yaml b/superset/examples/configs/charts/Superset Community Dashboard/Ten_Worst_Violations_ESLint_77.yaml
index aea62d5fb5..55d3a60d01 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/Ten_Worst_Violations_ESLint_77.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/Ten_Worst_Violations_ESLint_77.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: Ten Worst Violations (ESLint)
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/Top_10_Committers_90_days_91.yaml b/superset/examples/configs/charts/Superset Community Dashboard/Top_10_Committers_90_days_91.yaml
index 210ee4823c..360e0a1e75 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/Top_10_Committers_90_days_91.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/Top_10_Committers_90_days_91.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: Top 10 Committers (90 days)
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/Total_Rule_Violations_78.yaml b/superset/examples/configs/charts/Superset Community Dashboard/Total_Rule_Violations_78.yaml
index c5d1e71289..0d9c2eed1c 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/Total_Rule_Violations_78.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/Total_Rule_Violations_78.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: Total Rule Violations
 description: null
 certified_by: null
diff --git a/superset/examples/configs/charts/Superset Community Dashboard/Weekly_Commits_on_GitHub_89.yaml b/superset/examples/configs/charts/Superset Community Dashboard/Weekly_Commits_on_GitHub_89.yaml
index 86b84277df..2942bd1ae0 100644
--- a/superset/examples/configs/charts/Superset Community Dashboard/Weekly_Commits_on_GitHub_89.yaml	
+++ b/superset/examples/configs/charts/Superset Community Dashboard/Weekly_Commits_on_GitHub_89.yaml	
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 slice_name: Weekly Commits on GitHub
 description: null
 certified_by: null
diff --git a/superset/examples/configs/dashboards/Superset_Community_Dashboard.yaml b/superset/examples/configs/dashboards/Superset_Community_Dashboard.yaml
index 4e8c996a26..17a9a407bb 100644
--- a/superset/examples/configs/dashboards/Superset_Community_Dashboard.yaml
+++ b/superset/examples/configs/dashboards/Superset_Community_Dashboard.yaml
@@ -1,25 +1,9 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 dashboard_title: Superset Community Dashboard
 description: null
 css: ''
 slug: null
-certified_by: ''
-certification_details: ''
+certified_by: null
+certification_details: null
 published: true
 uuid: 84cfc008-c88b-4982-8731-90b4aad2824b
 position:
@@ -253,13 +237,13 @@ position:
   HEADER_ID:
     id: HEADER_ID
     meta:
-      text: Superset Community Efforts
+      text: Superset Codebase Engagement
     type: HEADER
   MARKDOWN-e_ue39c8AW:
     children: []
     id: MARKDOWN-e_ue39c8AW
     meta:
-      code: '# Find something to fix!
+      code: '# Help make Superset''s codebase better!
 
 
         These charts help catalog "long tail" cleanup and migration projects in the
@@ -452,7 +436,7 @@ position:
     meta:
       defaultText: Tab title
       placeholder: Tab title
-      text: Technical Debt (Frontend)
+      text: Technical Debt
     parents:
     - ROOT_ID
     - TABS-25qvyH3IQg
@@ -713,52 +697,6 @@ metadata:
     - 91
   color_scheme: ''
   refresh_frequency: 0
-  shared_label_colors:
-    EugeneTorap: '#ACE1C4'
-    Always-prog: '#A1A6BD'
-    zhaoyongjie: '#666666'
-    lilykuang: '#D3B3DA'
-    villebro: '#666666'
-    rtexelm: '#A38F79'
-    craig-rueda: '#1FA8C9'
-    eschutho: '#454E7C'
-    Vitor-Avila: '#9EE5E5'
-    fisjac: '#FEC0A1'
-    Antonio-RiveroMartnez: '#B2B2B2'
-    sfirke: '#5AC189'
-    geido: '#EFA1AA'
-    kgabryje: '#E04355'
-    john-bodley: '#8FD3E4'
-    justinpark: '#3CCCCB'
-    betodealmeida: '#FCC700'
-    dpgaspar: '#A868B7'
-    michael-s-molina: '#ACE1C4'
-    mistercrunch: '#A38F79'
-    rusackas: '#A1A6BD'
-    SUM(total): '#454E7C'
-    days_stale: '#1FA8C9'
-    /home/runner/work/superset/superset/superset-frontend/packages/superset-ui-switchboard/src/switchboard.test.ts: '#1FA8C9'
-    /home/runner/work/superset/superset/superset-frontend/src/views/CRUD/hooks.ts: '#454E7C'
-    ? /home/runner/work/superset/superset/superset-frontend/packages/superset-ui-demo/storybook/stories/superset-ui-chart/SuperChart.stories.tsx
-    : '#5AC189'
-    /home/runner/work/superset/superset/superset-frontend/src/explore/components/ExploreViewContainer/index.jsx: '#FF7F44'
-    /home/runner/work/superset/superset/superset-frontend/src/filters/components/TimeGrain/TimeGrainFilterPlugin.tsx: '#666666'
-    /home/runner/work/superset/superset/superset-frontend/src/filters/components/Range/RangeFilterPlugin.tsx: '#E04355'
-    /home/runner/work/superset/superset/superset-frontend/src/explore/exploreUtils/exploreUtils.test.jsx: '#FCC700'
-    /home/runner/work/superset/superset/superset-frontend/src/pages/AllEntities/index.tsx: '#A868B7'
-    /home/runner/work/superset/superset/superset-frontend/src/filters/components/Select/SelectFilterPlugin.tsx: '#3CCCCB'
-    /home/runner/work/superset/superset/superset-frontend/src/features/annotations/AnnotationModal.tsx: '#A38F79'
-    react-hooks/exhaustive-deps: '#1FA8C9'
-    react-prefer-function-component/react-prefer-function-component: '#454E7C'
-    storybook/prefer-pascal-case: '#5AC189'
-    no-console: '#FF7F44'
-    '@typescript-eslint/no-unused-vars': '#666666'
-    jest/no-disabled-tests: '#E04355'
-    jest/expect-expect: '#FCC700'
-    '@typescript-eslint/no-use-before-define': '#A868B7'
-    react/no-danger: '#3CCCCB'
-    testing-library/no-debugging-utils: '#A38F79'
-  color_scheme_domain: []
   expanded_slices: {}
   label_colors: {}
   timed_refresh_immune_slices: []
@@ -903,44 +841,7 @@ metadata:
     - 79
     - 80
     tabsInScope: []
-  - id: NATIVE_FILTER-Hix7r6O6-
-    controlValues:
-      enableEmptyFilter: false
-      defaultToFirstItem: false
-      multiSelect: true
-      searchAllOptions: false
-      inverseSelection: false
-    name: FOO
-    filterType: filter_select
-    targets:
-    - column:
-        name: FOO
-      datasetUuid: a3b0a980-a1b4-4463-89fd-91e6d3347313
-    defaultDataMask:
-      extraFormData: {}
-      filterState: {}
-      ownState: {}
-    cascadeParentIds: []
-    scope:
-      rootPath:
-      - ROOT_ID
-      excluded:
-      - 75
-      - 76
-      - 77
-      - 79
-      - 80
-      - 82
-      - 83
-      - 84
-      - 85
-      - 86
-    type: NATIVE_FILTER
-    description: ''
-    chartsInScope:
-    - 74
-    - 78
-    tabsInScope:
-    - TAB-Qe34bcVead
   default_filters: '{}'
+  shared_label_colors: {}
+  color_scheme_domain: []
 version: 1.0.0
diff --git a/superset/examples/configs/databases/Shillelagh.yaml b/superset/examples/configs/databases/Shillelagh.yaml
index 663916eaf3..46b681b7fb 100644
--- a/superset/examples/configs/databases/Shillelagh.yaml
+++ b/superset/examples/configs/databases/Shillelagh.yaml
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 database_name: Shillelagh
 sqlalchemy_uri: shillelagh+safe://
 cache_timeout: 3600
@@ -33,11 +17,6 @@ extra:
       - genericjsonapi
       - genericxmlapi
       - htmltableapi
-      - githubapi
-      - s3selectapi
-      - socrataapi
-      - weatherapi
-      - systemapi
   metadata_params: {}
   schemas_allowed_for_file_upload: []
 uuid: fe1710ff-33b3-4542-82ec-005a84cd2f50
diff --git a/superset/examples/configs/datasets/Shillelagh/Open_Superset_Issues.yaml b/superset/examples/configs/datasets/Shillelagh/Open_Superset_Issues.yaml
index 0c601a764d..359a1a9c98 100644
--- a/superset/examples/configs/datasets/Shillelagh/Open_Superset_Issues.yaml
+++ b/superset/examples/configs/datasets/Shillelagh/Open_Superset_Issues.yaml
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 table_name: Open Superset Issues
 main_dttm_col: null
 description: null
diff --git a/superset/examples/configs/datasets/Shillelagh/Open_Superset_PRs.yaml b/superset/examples/configs/datasets/Shillelagh/Open_Superset_PRs.yaml
index a3d62505c5..75a3009e1d 100644
--- a/superset/examples/configs/datasets/Shillelagh/Open_Superset_PRs.yaml
+++ b/superset/examples/configs/datasets/Shillelagh/Open_Superset_PRs.yaml
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 table_name: Open Superset PRs
 main_dttm_col: created_at
 description: null
diff --git a/superset/examples/configs/datasets/Shillelagh/Superset_Commits_by_Committer.yaml b/superset/examples/configs/datasets/Shillelagh/Superset_Commits_by_Committer.yaml
index 7d624221dd..d7db253a78 100644
--- a/superset/examples/configs/datasets/Shillelagh/Superset_Commits_by_Committer.yaml
+++ b/superset/examples/configs/datasets/Shillelagh/Superset_Commits_by_Committer.yaml
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 table_name: Superset Commits by Committer
 main_dttm_col: null
 description: null
diff --git a/superset/examples/configs/datasets/Shillelagh/Superset_Tech_Debt_-_Aggregated.yaml b/superset/examples/configs/datasets/Shillelagh/Superset_Tech_Debt_-_Aggregated.yaml
index 255baa99fb..3287b77db4 100644
--- a/superset/examples/configs/datasets/Shillelagh/Superset_Tech_Debt_-_Aggregated.yaml
+++ b/superset/examples/configs/datasets/Shillelagh/Superset_Tech_Debt_-_Aggregated.yaml
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 table_name: Superset Tech Debt - Aggregated
 main_dttm_col: Timestamp
 description: null
@@ -42,18 +26,6 @@ metrics:
     warning_markdown: ''
   warning_text: null
 columns:
-- column_name: FOO
-  verbose_name: null
-  is_dttm: false
-  is_active: true
-  type: null
-  advanced_data_type: null
-  groupby: true
-  filterable: true
-  expression: "CASE\n    WHEN 1=1 THEN 1\n    ELSE 0\nEND"
-  description: null
-  python_date_format: null
-  extra: {}
 - column_name: Timestamp
   verbose_name: null
   is_dttm: true
@@ -65,7 +37,8 @@ columns:
   expression: null
   description: null
   python_date_format: null
-  extra: {}
+  extra:
+    warning_markdown: null
 - column_name: Count
   verbose_name: null
   is_dttm: false
@@ -77,7 +50,8 @@ columns:
   expression: null
   description: null
   python_date_format: null
-  extra: {}
+  extra:
+    warning_markdown: null
 - column_name: Description
   verbose_name: null
   is_dttm: false
@@ -89,7 +63,8 @@ columns:
   expression: null
   description: null
   python_date_format: null
-  extra: {}
+  extra:
+    warning_markdown: null
 - column_name: Process
   verbose_name: null
   is_dttm: false
@@ -101,7 +76,8 @@ columns:
   expression: null
   description: null
   python_date_format: null
-  extra: {}
+  extra:
+    warning_markdown: null
 - column_name: Rule
   verbose_name: null
   is_dttm: false
@@ -113,6 +89,7 @@ columns:
   expression: null
   description: null
   python_date_format: null
-  extra: {}
+  extra:
+    warning_markdown: null
 version: 1.0.0
 database_uuid: fe1710ff-33b3-4542-82ec-005a84cd2f50
diff --git a/superset/examples/configs/datasets/Shillelagh/Superset_Tech_Debt_-_ESLint.yaml b/superset/examples/configs/datasets/Shillelagh/Superset_Tech_Debt_-_ESLint.yaml
index 55a6c0b59d..92c669b468 100644
--- a/superset/examples/configs/datasets/Shillelagh/Superset_Tech_Debt_-_ESLint.yaml
+++ b/superset/examples/configs/datasets/Shillelagh/Superset_Tech_Debt_-_ESLint.yaml
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 table_name: Superset Tech Debt - ESLint
 main_dttm_col: Timestamp
 description: null
diff --git a/superset/examples/configs/datasets/Shillelagh/Superset_Weekly_Commits.yaml b/superset/examples/configs/datasets/Shillelagh/Superset_Weekly_Commits.yaml
index 1581a82288..270ca2daab 100644
--- a/superset/examples/configs/datasets/Shillelagh/Superset_Weekly_Commits.yaml
+++ b/superset/examples/configs/datasets/Shillelagh/Superset_Weekly_Commits.yaml
@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 table_name: Superset Weekly Commits
 main_dttm_col: null
 description: null