Merge remote-tracking branch 'origin/develop' into develop

src/skins/vector/css/themes/_base.scss

@@ -165,6 +165,7 @@ $progressbar-color: #000;
     padding-right: 1.5em;
     cursor: pointer;
     display: inline-block;
+    outline: none;
 }
 
 @define-mixin mx_DialogButton_hover {

src/vector/index.js

@@ -317,7 +317,6 @@ async function loadApp() {
                 // flashes of unstyled content.
                 a.onload = () => { 
                     Tinter.setTheme(theme);
-                    Tinter.tint();
                 };
             }
         }