Hello,
i'm reaching out for actually two different problems, but they're interconnected.
First things firsrt. There really should be a transparency effect option for all themes, that would not only reduce the opacity of the background of the sidebars, but enables an acrylic / blur effect to the background. That would be essential to match the look of modern os'es, espacially the fluent design look of Windows 11.
The only theme that approaches this is the "extra large tile mode". But it has a bug. When you hide the caption text via tiles configuration menu, the preview frames of the windows will not expand to the full width of sidebar (because there is now more space, because the caption text is not shown anymore), but stay such sized, if there still would be the caption text shown. I saw at least one thread here in the forum, in which the same problem has been stated.
So first, please add more transparency / blur options to tiles. This is essentail to match the look of modern operating systems.
Seccond, please fix the bug of the theme "extra large tile mode" described above. That should really be an easy fix!
I purchased a license for tiles and I hope that if there isn't a way to contact Stardock directly regarding such things, I'm at least able to get some help here on the forums.
Thinks in advance.