Purple Haze is a theme for the Mailspring email client. You can find the install instuctions and previews down below.
Use one of the following methods:
Clone this repo laocally:
git clone https://github.com/xzodia1000/purple-haze.git
Download and unzip the source code from the release page here.
After following either of the above methods:
Mailspring > Edit > Install Theme > Select the cloned/downloaded folder
After selecting restart the client and it should start working.