Update to google theme, fix input button alignment

src/definitions/elements/input.less

@@ -328,7 +328,7 @@
 .ui.action.input > .button,
 .ui.action.input > .buttons {
   display: table-cell;
-  vertical-align: top;
+  vertical-align: middle;
   white-space: nowrap;
 }
 .ui.action.input > .button > .icon,

src/themes/packages/google/elements/button.overrides

@@ -16,4 +16,8 @@
     0px 0px 0px 1px rgba(0, 0, 0, 0.2) inset,
     0px 2px 3px 0px rgba(0, 0, 0, 0.3) !important
   ;
+}
+.ui.buttons > .button:hover,
+.ui.buttons > .button.active {
+  position: static !important;
 }

src/themes/packages/google/elements/button.variables

@@ -56,15 +56,19 @@
       Variations
 --------------------*/
 
+@labeledIconBackgroundColor: transparent;
+@labeledIconWidth: 2em;
+
 @coloredBackgroundImage : @subtleGradient;
 @coloredBoxShadow       : 0px 0px 0px 1px rgba(0, 0, 0, 0.25) inset;
 
 @primaryColor       : #4184F3;
 @primaryBoxShadow   : 0px 0px 0px 1px #0157E4 inset;
 
-@secondaryColor     : #EEEEEE;
-@secondaryTextColor : @textColor;
-@secondaryBoxShadow : @borderBoxShadow;
+@secondaryColor           : #EEEEEE;
+@secondaryBackgroundImage : @backgroundImage;
+@secondaryTextColor       : @textColor;
+@secondaryBoxShadow       : @borderBoxShadow;
 
 @positiveColor: #3D9400;
 @negativeColor: #D34836;