sangheeta Some of the control center icons use custom icons. This appears to be from upstream GNOME Control Center.
I just pushed an update to the branding, changing the default theme to Materia, to match the recommendation and vision of upstream Budgie. The padding issue has been reported, but it looks like a theme issue and Plata appears to no longer be maintained.
Apologies for not doing that before, and for any inconveniences with switching themes. I don't use Plata myself and forgot about it.
Thank you for the testing and feedback!