You’re a hero! I wonder how it looks in a resolution other than 1920x1080 though, does it stretch to fit or zoom? I will check it out later for myself ^^
PS. I’ve made small updates after you downloaded the theme, so you might want to download it again. It’s nothing big but just small improvements, you will probably not even notice a difference.
I had to translate your sentence, so forgive me if I misunderstood it.
To set/change OB’s theme,
OB Settings
→ Scroll down
→ Customization
→ Upload theme (.css file)
→ Change theme
→ Done!
To change DarkGlass’s background,
Open the .css file (Using text editor)
→ Change the “–bgimage” url to your image
→ Set the theme on OB2 again (Follow the instructions above)
→ Done!