Progress bar color in Video Downloader

I use this on macOS and Windows. The interface doesn't seem to be native on either OS, so I'm not sure how it's coded.

I can barely see the progress of downloads sometimes because it's slightly dark gray on medium gray. It'd be easier if it were a color on gray.

I usually check them remotely or on a phone, so it'd be nice to be able check progress easily without zooming in.