Does not work anymore with the latest IPFire 2.x version

## Problem

Since the IPFire core update 180 (_if I remember correctly_), the patch does not work anymore.

## Expected

The patch is expected to work but doesn't.

## Cause

The targetted files has been changed.

## Workarounds

### Chromium based browsers

* Temporary:

Open the web console, then go the __Console__ tab, then from the three "dot" menu, select __More tools__ then __Rendering__, near the end you should find the option called __Enable automatic dark mode__.


* Permanent:

Go to chrome://flags/#enable-force-dark


## Current status

__WON'T FIX__

> See workarounds.

## Additional information

Keeping the current project structure is not sustainable for the long term and I'd rather do what is necessary to get my code directly included into the IPFire project.