Here is another theme for Openbox. If you want additional information about Openbox then check out my previous post from the topic:
https://www.techtimejourney.net/?p=1215#more-1215
Here is a screen capture from the theme decorations:
Parts of to theme and download links:
*Vintage alternative background
*Yellow_vintage Firefox/Thunderbird persona
Openbox theme installation: Just download the theme archive and then open it. The theme will be automatically installed to your .themes folder which is found inside your user’s home directory. Note: Do make sure that you have the obconf installed. Obconf handles the theme installations in Openbox
To apply wallpapers you can use, for example, feh:
feh –bg-scale backgroundname.png
Vintage is released under GPL