Tweak css

package.json

@@ -108,7 +108,7 @@
         "c9.ide.save": "#e00549cb0f",
         "c9.ide.scm": "#0bccfb982b",
         "c9.ide.terminal.monitor": "#b76f1c9f24",
-        "c9.ide.test": "#a599006ece",
+        "c9.ide.test": "#c3a3c64a26",
         "c9.ide.test.mocha": "#4d3ad597be",
         "c9.ide.theme.flat": "#2de8414db7",
         "c9.ide.threewaymerge": "#229382aa0b",

plugins/c9.ide.layout.classic/themes/flat-light.less

@@ -428,6 +428,11 @@ body .runner-form-header{
     border-bottom: 1px solid @border-highlight-dark;
 }
 
+.runtestbtn .icon{
+    background-position: 1px 2px;
+    height: 22px;
+}
+
 @media print, (-o-min-device-pixel-ratio: 5/4), (-webkit-min-device-pixel-ratio: 1.25), (min-resolution: 1.25dppx) {
     .listBP .checked .checkbox {
         background-position: 0px -61px !important;