Refresh context sidebar tab based on selection

editor/sass/style.scss

@@ -40,6 +40,7 @@
 @import "panels";
 @import "tabs";
 @import "tab-config";
+@import "tab-context";
 @import "tab-info";
 @import "popover";
 @import "flow";

editor/sass/tab-context.scss

@@ -0,0 +1,41 @@
+/**
+ * Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+.sidebar-context-stack {
+    position: absolute;
+    top: 0; // with toolbar: 43px;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    overflow-y: scroll;
+
+    .palette-category {
+        &:not(.palette-category-expanded) button {
+            display: none;
+        }
+    }
+}
+
+.sidebar-context-property {
+    position: relative;
+    .debug-message-tools {
+        right: 3px;
+        display: none;
+    }
+    &:hover .debug-message-tools {
+        display: inline-block;
+    }
+}