Separate image quality setting for thumbnails and gallery images

In the global settings you can only set the image quality once for all processes. However, for the optimization for high dpi screens it would be better if you increased the size of the generated thumbnail dimensions and reduced the image quality so that the images do not take up too much space. the setting would then look something like this:

With this change you should also consider the file manager. It seems to have its own quality setting that cannot be adjusted.

thanks