Changing Plymouth Theme for Encrypted Disk Password

Hey, I was able to change the Plymouth theme that shows up when powering down the system using the standard instructions that you can find on Google. However, the change did not get applied to the Plymouth theme that shows up when you boot the computer. Does anyone know how I can apply the Plymouth theme to that as well? I already added the password entry prompt to my Plymouth theme from the original Qubes Plymouth theme.

I have tested all of them available for Qubes and as far as I can remember the only one beside qubes-dark that worked for me was hot-dog