diff --git a/chrome/extras/customColorTheme.css b/chrome/extras/customColorTheme.css
new file mode 100644
index 0000000..4d453e7
--- /dev/null
+++ b/chrome/extras/customColorTheme.css
@@ -0,0 +1,123 @@
+/* light mode */
+:root:not([style]),
+:root:not([lwtheme]),
+:root[style*="--lwt-accent-color:rgb(227, 228, 230); --lwt-text-color:rgba(24, 25, 26);"]
+{
+	/* accentcolor */
+	--lwt-accent-color: #cecece !important;
+	
+	/* textcolor */
+	--lwt-text-color: #000 !important;
+	
+	/* toolbar */
+	--toolbar-bgcolor: #f7f7f7 !important;
+	
+	/* toolbar_text */
+	--toolbar-color: #000 !important;
+	
+	/* toolbar_bottom_separator */
+	--toolbox-border-bottom-color: #d2d2d2 !important; /* legacy */
+	--chrome-content-separator-color: #d2d2d2 !important;
+	
+	/* icons */
+	--lwt-toolbarbutton-icon-fill: #000 !important;
+	
+	/* icons_attention */
+	--lwt-toolbarbutton-icon-fill-attention: #0078d4 !important;
+	
+	/* button_background_hover */
+	--lwt-toolbarbutton-hover-background: #0001 !important;
+	
+	/* button_background_active */
+	--lwt-toolbarbutton-active-background: #0002 !important;
+	
+	--lwt-toolbar-field-color: #000 !important;
+	--lwt-toolbar-field-focus-color: #000 !important;
+	
+	/* popup_highlight */
+	--autocomplete-popup-highlight-background: #f7f7f7 !important;
+	
+	/* popup_highlight_text */
+	--autocomplete-popup-highlight-color: #000 !important;
+
+	--urlbar-popup-url-color: #0172C9 !important;
+	--lwt-toolbar-field-background-color: #fff !important;
+    --lwt-toolbar-field-focus: #fff !important;
+	--lwt-toolbar-field-border-color: #ccc !important;
+
+    --tab-line-col: #0078d4 !important;
+}
+
+/* dark mode */
+:root[style*="--lwt-accent-color:rgb(12, 12, 13); --lwt-text-color:rgba(249, 249, 250);"]
+{
+	/* accentcolor */
+	--lwt-accent-color: #1b1b1b !important;
+	
+	/* textcolor */
+	--lwt-text-color: #fff !important;
+	
+	/* toolbar */
+	--toolbar-bgcolor: #3b3b3b !important;
+	
+	/* toolbar_text */
+	--toolbar-color: #fff !important;
+	
+	/* toolbar_bottom_separator */
+	--toolbox-border-bottom-color: #5B5B5B !important; /* legacy */
+	--chrome-content-separator-color: #5B5B5B !important;
+	
+	/* icons */
+	--lwt-toolbarbutton-icon-fill: #fff !important;
+	
+	/* icons_attention */
+	--lwt-toolbarbutton-icon-fill-attention: #4C98D1 !important;
+	
+	/* button_background_hover */
+	--lwt-toolbarbutton-hover-background: #fff1 !important;
+	
+	/* button_background_active */
+	--lwt-toolbarbutton-active-background: #fff2 !important;
+	
+	--lwt-toolbar-field-color: #fff !important;
+	--lwt-toolbar-field-focus-color: #fff !important;
+	
+	/* popup */
+	--arrowpanel-background: #4a4a4a !important;
+	
+	/* popup_text */
+	--arrowpanel-color: #fff !important;
+	--autocomplete-popup-color: #fff !important;
+	--panel-disabled-color: hsla(0, 0%, 100%, .5) !important;
+	
+	/* popup_border */
+	--arrowpanel-border-color: #63636363 !important;
+	--autocomplete-popup-border-color: #636363 !important;
+	
+	/* popup_highlight */
+	--autocomplete-popup-highlight-background: #4c4f52 !important;
+	
+	/* popup_highlight_text */
+	--autocomplete-popup-highlight-color: #fff !important;
+
+	--urlbar-popup-url-color: #75B6E8 !important;
+	--lwt-toolbar-field-background-color: #2b2b2b !important;
+    --lwt-toolbar-field-focus: #2b2b2b !important;
+	--lwt-toolbar-field-border-color: #656565 !important;
+
+    --tab-line-col: #4C98D1 !important;
+}
+
+/* Inactive Window Light */
+:-moz-any(:root:not([style]), :root:not([lwtheme]), :root[style*="--lwt-accent-color:rgb(227, 228, 230); --lwt-text-color:rgba(24, 25, 26);"]):-moz-window-inactive :-moz-any(#TabsToolbar, #navigator-toolbox) {
+	--lwt-accent-color: #e8e8e8 !important;
+	--lwt-text-color: #3a3a3a !important;
+	--toolbar-color: #3a3a3a !important;
+}
+
+/* Inactive Window Dark */
+:-moz-any(:root[style*="--lwt-accent-color:rgb(12, 12, 13); --lwt-text-color:rgba(249, 249, 250);"]):-moz-window-inactive :-moz-any(#TabsToolbar, #navigator-toolbox) {
+	--lwt-accent-color: #2e2e2e !important;
+	--lwt-text-color: #b7b7b7 !important;
+	--toolbar-color: #cecece !important;
+}
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