Hi Bastian.
Thanks for sharing this information and giving us useful data to customize darktable even more than it already allows.
I like the result of customizing and mimicking some Capture One functions.
I’m going to try to put some of those shortcuts you kindly showed us in darktable customization, I’ve already made a few changes to mine, and I hope they will be of great use to me. My personal darktable theme. - #44 by difrkaguilar
In the case of the thumbnails, before I put a lot of useful information under the thumbnails besides the stars, but I realized that it was not so useful, because if I passed the mouse over the thumbnails, the popup showed me the same information, so I decided to leave only the file name and the stars, if I want more detailed information, I put the mouse over the thumbnail. This way I gain more viewing area of the image.
Here is an example of how I have the thumbnails configured to only show the file name and stars, in the popup then the more detailed information.
Greetings from La Habana, Cuba.