Hi, diy you try this with the modern theme? Seems there is no styling information in it for this one. I can check out how it is with macOS but probably needs some additonal love here too. I think it should also be exposed in the preferences. Best to add a second patch for this here to or we do it later.
Bug 1607041 Comment 4 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
Mixup
Mixup ignore this comment
Added stefanh to take a look at the macOS side.