Fixes dark theme for test panel

plugins/c9.ide.layout.classic/less/splitbutton.less

@@ -1,6 +1,6 @@
 body .splitbutton .arrow {
     .image-2x("@{image-path}/@{dropdown-black-image}", @dropdown-black-image-width, @dropdown-black-image-height);
-    background-position: @dropdown-black-background-position;
+    background-position: 50%;
     width: 18px;
     min-width: 10px !important;
 }

plugins/c9.ide.layout.classic/less/toolbar-top.less

@@ -1,7 +1,7 @@
 .toolbar-top{
     border-top : 1px solid @border-highlight;
     padding : 0;
-    height : @toolbar-height;
+    // height : @toolbar-height;
     white-space: normal !important;
     border-bottom: 1px solid @border-highlight-dark; //rgb(15,15,15);
     background-color: @menu-bar-background;
@@ -32,4 +32,8 @@
 .toolbar-top.basic .c9-menu-btnDisabled .icon{
     background-position : 0 -38px;
 }
-    
+
+.has_apf .toolbar-top .sbtb_middle{
+    height: 18px;
+    padding: 1px 2px;
+}

plugins/c9.ide.layout.classic/themes/default-dark.less

@@ -1531,7 +1531,7 @@
 // Toolbar
 @toolbar-height: 24px;
 
-@toolbar-button-padding-top: 3px;
+@toolbar-button-padding-top: 5px;
 @toolbar-button-width: 26px;
 @toolbar-button-height: 25px;
 @toolbar-button-icon-width: 19px;

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

@@ -411,6 +411,16 @@
     bottom: -44px;
 }
 
+.has_apf .toolbar-top .sbtb_middle{
+    height: auto;
+    padding: 4px 25px 3px 5px;
+}
+
+.top-test-panel{
+    border-bottom: 1px solid @border-highlight-dark;
+    box-shadow: none;
+}
+
 @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;

plugins/c9.ide.ui/widgets.less

@@ -17,6 +17,10 @@
     margin: 1px 0px 0px 0px;
     padding-left: 0;
 }
+.custom-tree.ace_tree .tree-row.heading {
+    color: @tree-heading-color;
+    text-shadow: @tree-heading-text-shadow;
+}
 
 .custom-tree.ace_tree .tree-row.selected {
     background: @selected-background;