Split Opacity slider into 2 separate sliders for second chat

**Is your feature request related to a problem? Please describe.**
I really like my chatboxes to have very little opacity but the second chat box if i turn the opacity to 0 the text nearly disappears
**Describe the solution you'd like**
Would it be possible to split the second chat opacity slider into 2 sliders one for text opacity and one for background opacity of the chat box?

**Describe alternatives you've considered**
None

**Additional context**
None