Yaru theme switcher

[Gustavo]

Hello fellow members,

I'm new to ubuntu lists, so excuse me if I'm doing this wrong.

When testing Ubuntu 20.04 I've seen that changing the theme to Yaru 
dark doesn't change the shell theme, I know that this isn't a bug, but 
I believe it is unintended behaviour and therefore choose to send this 
here.
Is someone already working on a fix?
If not, I'll gladly accept the task and try to fix it until today.

Gustavo.