[ui] update logo, favicon, and new primary color (#1781)

* update favicon image

* change primary color

* update logo in header

* update logo in readme

README.md

@@ -13,6 +13,12 @@ Superset
 [![Documentation](https://img.shields.io/badge/docs-airbnb.io-blue.svg)](http://airbnb.io/superset/)
 [![dependencies Status](https://david-dm.org/airbnb/superset/status.svg?path=superset/assets)](https://david-dm.org/airbnb/superset?path=superset/assets)
 
+<img
+  src="https://cloud.githubusercontent.com/assets/130878/20946612/49a8a25c-bbc0-11e6-8314-10bef902af51.png"
+  alt="Superset"
+  width="500"
+/>
+
 **Superset** is a data exploration platform designed to be visual, intuitive
 and interactive.
 

superset/assets/stylesheets/less/cosmo/variables.less

@@ -14,7 +14,7 @@
 @gray-light:             lighten(@gray-base, 70%);
 @gray-lighter:           lighten(@gray-base, 95%);
 
-@brand-primary:         #45A5FF;
+@brand-primary:         #00A699;
 @brand-success:         #4AC15F;
 @brand-info:            lighten(#2AB7CA, 15%);
 @brand-warning:         #FED766;

superset/config.py

@@ -69,7 +69,7 @@ ENABLE_PROXY_FIX = False
 APP_NAME = "Superset"
 
 # Uncomment to setup Setup an App icon
-APP_ICON = "/static/assets/images/superset_logo.png"
+APP_ICON = "/static/assets/images/superset-logo@2x.png"
 
 # Druid query timezone
 # tz.tzutc() : Using utc timezone

superset/templates/appbuilder/navbar.html

@@ -10,7 +10,10 @@
         <span class="icon-bar"></span>
       </button>
       <a class="navbar-brand" href="/superset/profile/{{ current_user.username }}/">
-        <img width="100" src="/static/assets/images/superset.png" style="padding-top: 2px;" alt="Superset">
+        <img
+          width="126" src="/static/assets/images/superset-logo@2x.png"
+          alt="Superset"
+        />
       </a>
     </div>
     <div class="navbar-collapse collapse">