Colours support transparency, swap selection background to style guide?

[ninetailedtori]

selection_background            #939ab7
selection_background_opacity    0.2

For example, for Catppuccin Macchiato, this works well as Overlay 2 with 0.2 opacity. We can port this quite easily to all other colours as well. Curious if this is something that we'd be looking to do? :]

[ninetailedtori]

Oddly colours support it but i can't seem to get it working, so maybe this issue is a no go.