Add custom zorin os dark theme preset

[georgewoodall82]

this is my attempt at recreating the zorin os dark theme

Signed-off-by: georgewoodall82 [email protected]

New Preset: Zorin Dark Custom

An alright recreation of the zorin os dark theme

Palette

• [x] None

Screenshots (optional)

Wallpaper

Checklist

Before submitting the PR, I checked:

• [x] I've only modified one preset
• [ ] I've added the URL to my raw preset in presets.json
• [x] I've checked the format of each json files I modified
• [x] (optional) I've added screenshots
• [x] The preset name is following preset naming guidelines.

Publication

• [x] I want to add my preset in the preset list.

Thanks for your submission we will review and merge it as quick as possible.