How to reset the gtk themes?(Solved)

Hi, i’ve deleted a folder thinking that isn’t would happen nothing, but my theme gtk is messed up, the bar of titles is white even when I put on dark theme, and the pocillo theme isn’t showing to select in settints of budgie desktop, even reinstalling. How do I reset my gtk theme ?

what folder did you delete?

theme of /usr/share/themes


sudo apt install --reinstall ubuntu-budgie-themes


the theme is solved, thanks. But some buttons and the title bar continue white same that picture

You have some of the default themes missing:

sudo apt install --reinstall libgtk2.0-common libgtk-3-common
sudo apt install --reinstall gnome-themes-extra gnome-themes-extra-data 

Then logout/login.

thank you one more time !