[Feature request] Light extension icon for dark browser themes

[i-am-ecc]

I'd like to suggest an alternative light icon for the extension button when the browser is set with a dark theme. The extension button currently looks like this on dark browser toolbars:

Is there any chance for something like an automatic icon selection according to the theme used on the browser?
My example above was taken from Firefox 76 running on Ubuntu 20.04 LTS with dark mode activated, plus the Dark Reader extension default theme.

[nE0sIghT]

Duplicate of #85
Go to extension settings and select light icon

[nE0sIghT]

I just thought that we can add white border to icon and get rid of manual icon selection.
I will investigate it