Wallbash for Zen browser
Download both of the .dcol files and put them in ~/.config/hyde/wallbash/always/
download the script and put in ~/.config/hyde/wallbash/scripts
run chmod +x ~/.config/hyde/wallbash/ZenBash.sh
run ~/.config/hyde/wallbash/scripts/ZenBash.sh
run color.set.sh --single ~/.config/hyde/wallbash/always/zen\#Chrome.dcol ; color.set.sh --single ~/.config/hyde/wallbash/always/zen\#Content.dcol
Then, to make transparency work correctly, install the Zen Zero mod:
For the home page from the screenshot, open about:config and search zen.urlbar.replace-newtab.
Change it to false.