Whenever I open an application, system settings, terminal, anything, the colours default to this :

https://ibb.co/yWJsrqG

When it's supposed to look like this:

https://ibb.co/72Wzzv9

The way I fix this issue is by changing the application style to another one and back to what's selected, and the same with the colours.
The issue is that whenever I open a program it defaults to the white background that's unreadable and I cannot find a way for it to respect my colours.

I'm using Artix Linux btw

What are your default settings? You probably have a Color theme that doesn't work correctly.

Works perfectly fine here with both the default Breeze and the Dark Breeze themes.