Google Docs Comments – How to Assign Different Colors to Comments and Nested Comments

So Docs has this great feature which I have begun using heavily and I would like to do something more with it. Right now, all text in a document that I have attached comments to are the same light yellow. When a bit of text with an attached comment is selected, it turns bold yellow unless it is a nested comment and then it remains the same light yellow.

I would like to possibly be able to assign different highlight colors to comments. I think this would be particularly beneficial in the case of nested comments.

Here's an example:

This entire sentence is highlighted the same light yellow (and here's a parenthetical remark that also has its own nested comment) because it has an attached comment.

Is this possible? Should I submit a feature request?