Suggestion: customize icon color

[RTechSn]

Hello.
I've started using Zen Browser recently and i really like it.
But the taskbar icon is really hard to find if you have many windows open. Other browsers i can easily identify with peripheral vision by their color. But Zen icon is grayscale and it requires an additional effort.
Since we already have theming and color customization, i think it would be reasonable to add an option to select the icon color.