How to add background color to archive comment when packing via setArchiveComment?

Question

PHP

Hello comrades.
The point is this. When packing the archive, the comment setArchiveComment
should be added Each user, when downloading the archive from the site, a unique comment is added to the archive

Everything works well, the comment is added.

But here's the problem, can someone tell me how to add the background color of the comment and the color of the text.