RGB matcher in OpenRGB based on Windows Theme/Accent Colour

Python script that matches the colour of all your RGB devices visible in OpenRGB and devices addressable by VIA (e.g. QMK keyboards) with the colour of your Windows theme/accent colour. A perfect use case scenario is when using tools like Wallpaper Engine or built-in Windows theme swapping that change your accent colour of Windows whenever the wallpaper changes (to match the wallpaper).

Requirements

• OpenRGB
• Python - version <=3.13 (due to Windows not having proper wheels for C library installations)

Setup

1. Run OpenRGB, navigate to Settings and set the following options:

   • Minimize on close - on
   • Start at Login - on
   • Start Minimized - on
   • Start Server - on
   • Set Server Host - on, set value to 127.0.0.1
   • Set Server Port - on, set value to 6742

   Then you can close the window.

   Note: in case OpenRGB crashes at startup for any reason, you can also manually start the server by going to SDK Server, setting Server Host to 127.0.0.1, Server Port to 6742 and clicking Start Server.

2. Install requirements:

   pip install -r requirements.txt
   

3. Replace the JSON definition file with the JSON file(s) obtained from the manufacturer's website for your own QMK/VIA device.

4. Create a task in Windows Task Scheduler:

   • open Task Scheduler
   • click Create Task...
   • in General tab:
     • set Name to RGB_match
   • in Triggers tab:
     • click New...
     • set Begin the task to At log on
   • in Actions tab:
     • click New...
     • set Action to Start a program
     • set Program/script to the absolute path to your locally installed pythonw.exe (pythonw.exe does not produce an ugly command line that would otherwise pop up when running the script with python.exe, this executable should be in the same folder as your normal python.exe on Windows)
     • set Add arguments (optional) to the absolute path to RGB_match.py file
   • in Conditions tab:
     • untick Start the task only if the computer is on AC power
   • in Settings tab:
     • untick Stop the task if it runs longer than
     • set If the task is already running, then the following rule applies to Stop the existing instance
   • click Ok
   • you can already start the task by selecting it and pressing Run, the task will always start on its own when logging onto your machine