Bumping this again because it's difficult to keep making progress with issues like this.
It's much easier for me to focus on getting one area of the program looking/working correctly at a time than shift my focus and have to "relearn" it again when I come back to it.
It would also be nice if there wasn't several weeks of debating whether or not a bug is a bug (if it doesn't follow the rules specified by the skin, resulting in graphical errors, that's a bug) which seems to be happening a lot recently.
A similar issue seems to be happening with the volume slider. Rather than the transparent area at the left staying a fixed size as defined by the margins (both ends are transparent) the graphic is getting compressed once it seems to reach a minimum size, which results in 0% volume indicating that it's not set to 0.
Top, current MC. Watch the left edge (blue) to see it distort and get pushed into the left margin.
Bottom, how it should look. Margins (transparent area on the left) should remain a fixed size, and the center section (blue) should eventually disappear when it gets too small.
(easier to see if you only watch one at a time, covering the other up)