Hi Steven,
Sorry I didn't get back to you sooner.
Thanks for looking into these
about item 1 - excellent. and yeah, just the controls - not the wavebar etc.
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about item 2 - this idea comes from Rain Meter where a window settings position can be set (see selected dropdown in image 1).

If MB compact view had its own "On desktop" then MB could be underneath any type of other window ...
image 2 shows a mock use of this where the RM clock is on top of MB without being on top of other windows.

Ideally, there would be a button next to the _ x window controls that was "pin", "send to back", "bring to front".
Hmm, in fact now I'm writing this, perhaps I should look for a window manager - lol
2b) The compact window could do with a RM style draggable (aka Pin) to prevent accidental movement.
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about item 3 - sure, thanks for taking a look
I've kind of talked myself out of the number 2, but i'll leave it here in case it is silly easy to achieve. The issue is MB looks so damn nice with the artwork, but I want to fit it within my RM stuff on the desktop where I don't need to control it, but simply just look at how pretty it is instead. It would make a really nice desktop background tho, one where you can control it, but the window doesn't come to the top of other windows. I hope I make sense.
Thanks again.