How to keep color/translucency of taskbar after applying a theme?

[laurorual]

So, i'm trying to apply this theme on Taskbar Styler: https://www.vinstartheme.com/windows-11x-taskbar/
But, no matter what i do my taskbar goes black and looses the translucency, something that shouldn't happen (given how in the screenshots and the video i've seen the color/translucency of the taskbar keeps the same as before).
How do i fix this?

How it should be:

How it is now:

[m417z]

Here would be a better place to ask this: https://github.com/ramensoftware/windows-11-taskbar-styling-guide/issues
Also, have you tried asking the theme authors?

[laurorual]

Thanks! I just posted an issue there as well.
As for asking the author, i don't think it's this theme's fault, cuz the same happens with other themes that should follow color/translucency but it's not.