I've been trying to work out how to make my taskbar app icons a bit smaller. I have a few things pinned, enough to fill the bar. When I have an extra app opened, all the icons halve in size and become two columns justified to the middle. That throws off my muscle memory. If I could set the icons to, say, 80% smaller, there'd still be a bit of room before they need to reposition.

I've tried searching for "taskbar size" in the advanced settings and changing things that look relevant. The ones that seem to do something are "Horizontal/Verticle Taskbar Button Size (no text, pinned)". I think there are a couple of issues with those.

One is that if I adjust them to any value big or small, the pinned system tray app icons and popout arrow disappear. I think that's just a bug. I have to re-start DF and then hide/show the system tray to get them back.

Adjusting those properties do things that are hard to grok. Horizontal doesn't seem to affect anything. If I put in values of about 30 and below the icons become small enough to form two columns. I'd have thought values above that would do what I want. But instead, the icons stop changing size (at least in a noticeably linear way) and instead start moving to the right, pressed up against the bar edge as if the setting is adding padding. Values over 50 don't seem to do anything.

It'd be nice to have a single value to adjust the square size of the icons predicably.

An alternative solution for what I'm trying to do - avoid the icons jumping to columns - would be a feature to toggle that behavior and have icons shrink as the bar fills up but maintain a single column.

Thanks