Build missing google assets

build/less/themes/packages/google/elements/button.overrides

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+@import url(http://fonts.googleapis.com/css?family=Roboto);
+
+.ui.button {
+  min-width: 72px;
+}
+
+.ui.primary.button:hover {
+  box-shadow:
+    0px 0px 0px 1px rgba(0, 0, 0, 0.3) inset,
+    0px 2px 3px 0px rgba(0, 0, 0, 0.35) !important
+  ;
+}
+
+.ui.secondary.button:hover {
+  box-shadow:
+    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;
+}

build/less/themes/packages/google/elements/button.variables

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+/*******************************
+            Button
+*******************************/
+
+/*-------------------
+       Element
+--------------------*/
+
+@pageFont : 'Roboto', Arial, sans-serif;
+@medium   : 13px;
+
+@verticalPadding   : 0.8em;
+@horizontalPadding : 0.8em;
+@borderRadius      : 0.1538em;
+@color             : #222222;
+@fontWeight        : normal;
+@textTransform     : none;
+
+@backgroundColor      : @white;
+@backgroundImage      : linear-gradient(transparent, rgba(0, 0, 0, 0.02));
+
+@solidBorderColor: #DDDDDD;
+
+@borderBoxShadowColor: @solidBorderColor;
+@borderBoxShadow: 0px 0px 0px 1px @solidBorderColor;
+@shadowBoxShadow: 0px 0px 0px 0px transparent;
+
+@transition:
+  opacity 0.3s @transitionEasing,
+  background-color 0.3s @transitionEasing,
+  color 0.3s @transitionEasing,
+  box-shadow 0.3s @transitionEasing,
+  background 0.3s @transitionEasing
+;
+
+/*-------------------
+        State
+--------------------*/
+
+@hoverBackgroundColor: @white;
+@hoverBoxShadow:
+  @borderBoxShadow,
+  0px 2px 3px 0px rgba(0, 0, 0, 0.2) !important
+;
+
+@downBackgroundColor: @white;
+@downBackgroundImage: linear-gradient(rgba(0, 0, 0, 0.04), rgba(0, 0, 0, 0.04));
+@downTextColor: #222222;
+@downBoxShadow: @borderBoxShadow;
+
+@activeBackgroundColor: #F0F0F0;
+@activeBoxShadow: 0px 0px 0px 1px #DDDDDD;
+
+
+/*-------------------
+      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;
+@secondaryBackgroundImage : @backgroundImage;
+@secondaryTextColor       : @textColor;
+@secondaryBoxShadow       : @borderBoxShadow;
+
+@positiveColor: #3D9400;
+@negativeColor: #D34836;
+@invertedBorderSize: 1px;
+