Feature Request: Add transparency to cards

[austwhite]

I am using a custom background that uses custom images. I would like an option to add transparency to cards, while keeping the rest of the colour set of this theme. I use to fudge it by changing the variable for background-card-color: 'rgba(255,255,255,1)' # Grey background By changing that last 1 to say 0.7 or 0.8 use to give just enough transparency. This still works with the Clear-Dark theme, that I use after sunset, but on the "Clear" theme, that transparency value is now totally ignored.

Any chance of checking this, or adding an official way to set transparency?

Edit: I guess this is partly a "bug" and partly a feature request.