[Frontend/PLATFORM] Cherry picking from platform changes in vista65

open #95
vista #65
Style mods for selects;
(cherry picked from commit 8b2c4c6)

platform/commonUI/themes/snow/res/sass/_constants.scss

@@ -57,6 +57,8 @@ $colorInputBg: $colorGenBg;
 $colorInputFg: $colorBodyFg;
 $colorFormText: pushBack($colorBodyFg, 10%);
 $colorInputIcon: pushBack($colorBodyFg, 25%);
+$colorSelectBg: pushBack($colorBodyFg, 45%);
+$colorSelectFg: $colorBodyFg;
 
 // Limits and staleness colors//
 $colorTelemFresh: pullForward($colorBodyFg, 20%);