Add more themes

[FotieMConstant]

Feature: Would love a few more background options, maybe some kind of gradient selection or image selection would be amazing! User: Anthony Young

[mfurquimdev]

Hi 👋🏾

I'm not entirely sure if this is the place, but I just added a theme inspired by Nord on my fork. Would you guys be interested in merging it?

I can create a Pull Request if so.

[Idered]

@mfurquim looks great! Please open PR, thanks