When loading a (dark, i.e. not-white) theme, the background and text colour for the Treebar is not updated...

[ghost]

Describe the bug
A clear and concise description of what the bug is.

When loading a non-white-background theme, treebar background is not updated...

To Reproduce
Steps to reproduce the behavior:

1. Load theme 'dusk by acvxqs' from the themes branch in the github repository.;
2. Click OK.

Expected behavior
A clear and concise description of what you expected to happen.

Make the background of the treebar section the same colour as the status, channel windows and nicklist.

Screenshots
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Please complete the following information:

• mIRC version: 7.61
• PnP version: 4.22.9

Additional context
Add any other context about the problem here.

[ghost]

Additional information:

PnP was released around 2002. It's not as much a bug as it is something PnP just wasn't designed to do, because the treebar wasn't present in mIRC then.