Thanks to jNizM for their helpful guide on the AHK forums.

Setup Notepad++ for AutoHotkey

Syntax-Highlighting

1. Download userDefineLang_AHK.xml as raw (Right-click and choosing save as target…)
2. Start Notepad++ and click on Menu Language -> Define your language
3. Click Import... and select the file you downloaded in step 1

4. Restart Notepad++

   • Default Theme (Preview)
   • Lazy Theme (Preview)