Add Xcode Dark Theme

[dch09]

Pull Request Template

Discord username (optional)

If you're in our Discord server, we'd like to give you the Contributor Discord Role, please include your username. Note: It must be labelled like so: username#4747 (make sure to include the #XXXX).

Name of theme

Xcode Dark Theme

How Has This Been Tested?

Preview script was run

Notes

We cannot accept pull request that include custom background images because:

• of licensing restrictions
• we are trying to keep the binary size of the repo as small as possible (just the yaml files)

If your theme has an intended custom background image, include a comment in the yaml with a link to where people should download it.