Is there a web browser that is easily skinned without tweaks?

Just wondering if there is a web browser that can accept being reskinned by Windowblinds and Curtains easily, and without having to tinker or mod or adjust any settings, etc. Chrome, Edge, and Firefox don't make it easy, and I understand that Chrome has removed all possibility of doing this. Perhaps a unknown, and little used browser? I doubt that Brave and Vivaldi will allow their browsers to be skinned. Thanks!