@FrobtheBuilder Hi, Thanks for your feature request.
This looks like a duplicate of https://forum.vivaldi.net/topic/31878/combine-window-title-and-address-bar-when-tabs-are-on-the-side Please vote for that instead, thank you.
If you want to make a feature request, please use the search first to see if you can find similar requests.
As you've provided some modding code, I'll move this post to the modding forum.
I badly want to make the font smaller in the bookmark panel and reduce the line spacing between items with the goal of being able see more items before having to scroll. This idea applies to History, Workspaces, etc. In the past I had been able to customize the UI to achieve this but cannot now.
I think it's misleading because it might make people think that ticking that box is enough to make the search private. Which is obviously not the case.
So I also agree that the proposed change is a lot less ambiguous.
@neltherion When Vivaldi 2.0 Stable is released, this thread will be tagged as DONE and moved to the archive.
Meanwhile, users could still suggest refinements to the feature, for example, to make the slider position move freely instead of only in fixed increments of 30 pixels.
@margarita In recent versions Quick Commands have been added. Not what you requested, but another way to quickly set the page zoom to a precise value without using the mouse. Also works for the User Interface Zoom. Adjusting that by fine increments can be useful to fit one more column of speed dial thumbnails on the start page. Examples after pressing F2 to open Quick Commands:
Page Zoom 115
UI Zoom 118