diff --git a/gui/default/assets/css/dev.css b/gui/default/assets/css/dev.css
new file mode 100644
index 000000000..1bf030af2
--- /dev/null
+++ b/gui/default/assets/css/dev.css
@@ -0,0 +1,12 @@
+.dev-top-bar{
+ display: none;
+ background-color: yellow;
+}
+
+.dev-error .hasCount{
+ background-color: red;
+}
+
+.dev-warn .hasCount{
+ background-color: yellow;
+}
\ No newline at end of file
diff --git a/gui/default/index.html b/gui/default/index.html
index 4fe59de98..9785bb08a 100755
--- a/gui/default/index.html
+++ b/gui/default/index.html
@@ -26,6 +26,8 @@
+
+