Sorting images is case-sensitive, but case-insensitive while viewing them

[OverlordAkise]

I installed droppy on a local machine (x64). I made a folder named "Images" and uploaded 4 pictures. They are sorted by name:

202006014_01.jpg setText_02.jpg setText_08.jpg Eagjedks.jpg

This is how they are sorted. (case-sensitive)

If i click on an Image, they are then sorted case-INsensitive within the picture viewer. This is how the image-viewer orders them:

202006014_01.jpg Eagjedks.jpg setText_02.jpg setText_08.jpg

Is there a setting for this that I have to change? Or is it hard-coded?