vivaldi-material-theme VS vivaldi-fox

Lately, I've been creating several Vivaldi themes for my computers (like here or here). Instead of making a bunch of individual repositories for different themes, I thought about creating a 'master' repo of personal and community-made themes, like those shared in this post. I would initially follow the format in the post. I'd like to eventually move to something a little more autonomous like the mod presented here, which would require a slightly different format.

If you're like me, you want to make everything your own. I'm a huge fan of the Material Theme so I decided to create a project to create Vivaldi themes from the Material color palette. I just wanted to share!

Tip: If you want your navigation bar and tabs to match the color of the page you're on (see the image above), check out VivaldiFox, which is fully compatible with Modulab!

website theme extending - only frame should "apply page colors"

I've never used Vivaldi, but it might be possible to recreate most of its features in Firefox with addons and a userChrome.css theme. For one thing, I enjoy this plugin that recreates the color-changing tabs.

The only somewhat workable solution for that is to write an extension that does something on every site to extract some color information from it. You would obviously have to decide what it even means for site "to have some specific color" which could be non-trivial. You can perhaps check Vivaldifox github page for pointers on how they do such color extraction.