Fix coverage view for dark theme

package.json

@@ -108,7 +108,7 @@
         "c9.ide.save": "#4a4a60a004",
         "c9.ide.scm": "#dbad171e75",
         "c9.ide.terminal.monitor": "#b76f1c9f24",
-        "c9.ide.test": "#4707ef209a",
+        "c9.ide.test": "#4995eb9dee",
         "c9.ide.test.mocha": "#f6cc482886",
         "c9.ide.theme.flat": "#2de8414db7",
         "c9.ide.threewaymerge": "#229382aa0b",

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

@@ -438,6 +438,19 @@ body .runner-form-header{
     height: 22px;
 }
 
+.coverage-toolbar{
+    background-color:#f7f7f7;
+    border-bottom: 1px solid #ECECEC;
+    box-sizing: border-box;
+}
+.coverage-toolbar .label{
+    padding:7px;
+}
+.coverage-toolbar .black_dropdown{
+    margin: 0;
+    min-height: 28px !important;
+}
+
 @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;