Updated for Firefox 89+

Added new items for Firefox 89 and removed unsupported calls.  I also changed some of the focus items to make it not look so harsh in the updated UI.

manifest.json

@@ -1,6 +1,6 @@
 {
   "manifest_version": 2,
-  "version": "3.1",
+  "version": "3.5",
   "name": "Dark Gold",
   "theme": {
     "images": {
@@ -17,18 +17,33 @@
       ]
     },
     "colors": {
-      "toolbar": "rgb(48, 48, 48)",
-      "toolbar_text": "rgb(255, 150, 3)",
-      "frame": "rgb(0, 0, 0)",
-      "tab_background_text": "rgb(125, 125, 125)",
-      "toolbar_field": "rgb(23, 23, 23)",
-      "toolbar_field_text": "rgb(255, 150, 3)",
-      "tab_line": "rgb(255, 150, 3)",
-      "popup": "rgb(35, 35, 35)",
-      "popup_text": "rgb(255, 150, 3)",
-      "tab_loading": "rgb(255, 150, 3)",
-	  "ntp_background": "rgb(48, 48, 48)",
-	  "ntp_text": "rgb(255, 150, 3)"
+		"toolbar": "rgb(48, 48, 48)",
+		"toolbar_text": "rgb(255, 150, 3)",
+		"frame": "rgb(0, 0, 0)",
+		"tab_background_text": "rgb(125, 125, 125)",
+		"toolbar_field": "rgb(23, 23, 23)",
+		"toolbar_field_text": "rgb(255, 150, 3)",
+		"toolbar_field_border_focus": "rgb(255, 150, 3)",
+		"toolbar_field_highlight": "rgb(255, 150, 3)",
+		"toolbar_field_highlight_text": "rgb(23, 23, 23)",
+		"popup": "rgb(35, 35, 35)",
+		"popup_text": "rgb(255, 150, 3)",
+		"tab_loading": "rgb(255, 150, 3)",
+		"ntp_background": "rgb(48, 48, 48)",
+		"ntp_text": "rgb(255, 150, 3)",
+		"sidebar": "rgb(35, 35, 35)",
+		"sidebar_text": "rgb(255, 150, 3)",
+		"bookmark_text": "rgb(255, 150, 3)",
+		"icons_attention": "rgb(255, 150, 3)",
+		"popup_highlight": "rgb(255, 150, 3)",
+		"popup_highlight_text": "rgb(23, 23, 23)",
+		"sidebar_highlight": "rgb(255, 150, 3)",
+		"sidebar_highlight_text": "rgb(23, 23, 23)",
+		"tab_line": "rgb(48, 48, 48)",
+		"tab_selected": "rgb(48, 48, 48)",
+		"tab_text": "rgb(255, 150, 3)",
+		"toolbar_field_border": "rgb(23, 23, 23)",
+		"toolbar_top_separator": "rgb(23, 23, 23)"
     }
   }
 }