(wider) scrollbar in YACReader Library

First, I would like to express how much I appreciate the work you have done on this excellent comic reader.Big thanks for that!

I have a small request: in YACReader Library, in the window where all the covers are displayed, the scrollbar is very small and barely noticeable. Can it be made a bit bigger and also give it a brighter color?

YACReader 10 is themeable, you'll be able to change show the scroll view looks like.

You can test it if you like: github.com/YACReader/yacreader-dev-builds/releases

Maybe I missed something but the theme editor seems to only allow to change colors.
And the scrollbar specifically doesn't seem to be affected bay any of the available options.

There are various scrollbars, which one are you talking about? You should be able to change colors.

Oh, indeed, I didn't notice that there was different types of scrollbar, my bad.
So it seems that the only scrollbar that isn't affected by the theme options is the one with arrows on top and bottom, which appears on the file list area, when using the comic flow view (and on the reader but that might be a different topic since this one is about the library).

Oh yeah, I never changed the appearance of that one so I didn’t themed it.