fix rgba to rgb

Author: clshortfuse

src/core/services/theming/theming.spec.js

@@ -266,7 +266,7 @@ describe('$mdThemingProvider', function() {
         expect(parse('.md-THEME_NAME-theme { color: "{{background-default-contrast-0.05}}"; }')[0].content)
           .toEqual('color: rgba(0,0,0,0.05);');
         expect(parse('.md-THEME_NAME-theme { color: "{{primary-contrast}}"; }')[0].content)
-          .toEqual('color: rgba(255,255,255,1.0);');
+          .toEqual('color: rgb(255,255,255);');
         expect(parse('.md-THEME_NAME-theme { color: "{{primary-contrast-secondary}}"; }')[0].content)
           .toEqual('color: rgba(255,255,255,0.7);');
       });