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It's not even that awfully bad as I thought.
I am already using an alternate theme from the BPIP extension and even custom theme is possible there.
If there's demand for such a theme (and OP likes is), I guess that maybe you should share it.
-snip-Unfortunately, as my note implies, it's not a theme or a plugin.
I just edited the page's CSS forms through the browser via "
inspect", it's gone the moment I refreshed the page.