Separating theme from layout for CSS files.

Change-Id: I4c3cec28b30de8026df4298f65ebf6ad92faf68f
(cherry picked from commit 11f662f)
diff --git a/web/gui/src/main/webapp/app/fw/widget/button-theme.css b/web/gui/src/main/webapp/app/fw/widget/button-theme.css
new file mode 100644
index 0000000..6e11948
--- /dev/null
+++ b/web/gui/src/main/webapp/app/fw/widget/button-theme.css
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+
+/*
+ ONOS GUI -- Button Service (theme) -- CSS file
+ */
+
+
+/* Selected button color */
+.light .button svg.embeddedIcon .icon rect,
+.light .toggleButton.selected svg.embeddedIcon .icon rect,
+.light .radioButton.selected svg.embeddedIcon .icon rect {
+    fill: #838383;
+}
+
+.light .button:hover svg.embeddedIcon .icon rect,
+.light .toggleButton.selected:hover svg.embeddedIcon .icon rect
+    /* NOTE: selected radio button should NOT have hover highlight */
+{
+    fill: #444444;
+}
+
+.light .button svg.embeddedIcon .glyph,
+.light .toggleButton.selected svg.embeddedIcon .glyph,
+.light .radioButton.selected svg.embeddedIcon .glyph {
+    fill: white;
+}
+
+.dark .button svg.embeddedIcon .icon rect,
+.dark .toggleButton.selected svg.embeddedIcon .icon rect,
+.dark .radioButton.selected svg.embeddedIcon .icon rect {
+    fill: #151515;
+}
+
+.dark .button:hover svg.embeddedIcon .icon rect,
+.dark .toggleButton.selected:hover svg.embeddedIcon .icon rect
+    /* NOTE: selected radio button should NOT have hover highlight */
+{
+    fill: #444;
+}
+
+.dark .button svg.embeddedIcon .glyph,
+.dark .toggleButton.selected svg.embeddedIcon .glyph,
+.dark .radioButton.selected svg.embeddedIcon .glyph {
+    fill: #B2B2B2;
+}
+
+/* Unselected button color */
+.light .toggleButton svg.embeddedIcon .icon rect,
+.light .radioButton svg.embeddedIcon .icon rect {
+    fill: #eee;
+}
+
+.light .toggleButton:hover svg.embeddedIcon .icon rect,
+.light .radioButton:hover:not(.selected) svg.embeddedIcon .icon rect {
+    fill: #ccc;
+}
+
+.light .toggleButton svg.embeddedIcon .glyph,
+.light .radioButton svg.embeddedIcon .glyph {
+    fill: #bbb;
+}
+.light .toggleButton:hover:not(.selected) svg.embeddedIcon .glyph,
+.light .radioButton:hover:not(.selected) svg.embeddedIcon .glyph {
+    fill: #999;
+}
+
+.dark .toggleButton svg.embeddedIcon .icon rect,
+.dark .radioButton svg.embeddedIcon .icon rect {
+    fill: #303030;
+}
+
+.dark .toggleButton:hover:not(.selected) svg.embeddedIcon .icon rect,
+.dark .radioButton:hover:not(.selected) svg.embeddedIcon .icon rect {
+    fill: #555;
+}
+
+.dark .toggleButton svg.embeddedIcon .glyph,
+.dark .radioButton svg.embeddedIcon .glyph {
+    fill: #565656;
+}
+
+.dark .toggleButton:hover:not(.selected) svg.embeddedIcon .glyph,
+.dark .radioButton:hover:not(.selected) svg.embeddedIcon .glyph {
+    fill: #777;
+}