So, to make it abundantly clear what I am asking for, here is an example picture edited (poorly) in a drawing software:
At left, you can see my current TexStudio look: the are where real text is indeed entered had its colors properly customized with a .txsprofile object. However, the menu toolbar, the tabs area and so on are still colored in light-gray, while I would like them to have a darker look (as in the image to the right).
Is it possible to achieve that somehow?
I am aware that plenty of questions have been asked here and elsewhere on the topic of TexStudio's colors. For example:
However, none of them really addressed the main point at hand: how to customize the colors of TexStudio's menus, toolbars, etc (not the colors of the text-editor part of TexStudio). The colors of the text-editor of TexStudio can be modified directly at the Syntax Highlighting options in the Tools>Configurations menu. However, rarely something is said about the other parts of TexStudio.
When a question pops up about this, it gets either no answers or very low-detailed reactions. For instance:
I realize that what TexStudio is doing is probably just retrieving the operational system color for it's menus, tool-bars and such. My question is whether there is anyway to bypass that and customize such colors.
Best Answer
TeXstudio is built on QT which acts as a canvas between the editor settings and the system settings. There are ways to change the underlying colours by adding a "stylesheet" so I have shown the example for changing the scrollbars in this answer
https://tex.stackexchange.com/a/468650/170109
It is possible to change much more but you will need to follow the links to brew your own or find a larger set of changes.