Add a way using CSS to force light mode

Author: LittleJ

system/Debug/Toolbar/Views/toolbar.css

@@ -412,6 +412,25 @@ simple styles to replace inline styles
 	overflow: hidden;
 }
 
+/**
+light mode (matches default css)
+ */
+.light .tab,
+.light .toolbar {
+	-webkit-filter: invert(0%);
+	filter: invert(0%);
+}
+
+.light .badge,
+.light #toolbar-position a,
+.light #toolbar-theme a,
+.light .toolbar h1,
+.light .current,
+.light tr[data-active="1"] {
+	-webkit-filter: invert(0%);
+	filter: invert(0%);
+}
+
 /**
 dark mode
  */