The theme change shapes > everything rounded end up with a square shape

Hi

Everything “graphical” i want to add to customize the theme and that have originally round shape, or cicle shape etc. end up with square shape (progress bar from a plugin i own shoul have slighlty rounded shape but its all straight, and icon from font icon is supposed to be a circle, but it end up being squarred if used with a premiumpress theme.

How to prevent premiumpress from changing the shape of everything that is not builtin the theme itself ?

Thanks