TCP Background drawing bug?

If the docked MIDI editor extends to the bottom of the track that contains the item, the TCP bg color is screwed when you close the editor. Shown here: For some reason this doesn't happen with the default theme. Anybody have ideas why this would happen? I suspect that this has something to do with tcp height settings, as my theme changes the TCP heights when I load it, where some other themes, like the default do not..

I have no idea why that happens. For me it also happens when I open and close the docked mixer. I suspect it's a bug or a WALTER mystery.

I noticed that it happens when the opened docker has to resize/move the TCPs. Strange that it doesn't happen with the default theme though. I tried playing with the TCP size values in the rtconfig of my theme, but wasn't able to fix it. Gotta do some more troubleshooting.