[Frontend] IN-PROGRESS Theming continues

open #95
Search, plots;
Minor tweaks to add shdw to items and buttons;

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

@@ -5,6 +5,7 @@
 @mixin btnSubtle($bg: $colorBtnBg, $bgHov: none, $fg: $colorBtnFg, $ic: $colorBtnIcon) {
 	@include containerSubtle($bg, $fg);
 	@include btnBase($bg, $colorKey, $fg, $ic);
+	@include text-shadow($shdwItemText);
 }
 
 @function pullForward($c: $colorBodyBg, $p: 20%) {