Linux Mint Cinnamon - tooltip font color bug

[Matic Kukovec]

Hi,

Specs:

  *   Linux Mint 21.2 - Cinnamon desktop
  *   Python 3.10
  *   PyQt 6.5.1

Note: this is an issue exclusive to Linux Mint Cinnamon.
When setting a custom stylesheet for QTooltip, the application does not respect the font. Example:
The global stylesheet is:
"""
...

QTooltip {
      background: red;
      color: white;
      border: white;
}

...
"""
and the tooltips look like this:
[cid:0aaaad8f-af31-4295-8b9a-2936bd6eb638]
The font is black, but it should be white!

This is probably a Qt issue, because if the QTooltip style is removed from the stylesheet and default
OS stylesheets are used, they have the same problem as reported by this user:
https://github.com/linuxmint/cinnamon/issues/11820 (the first post)

Is there a way to circumvent this in PyQt6 until this is fixed?

Thanks
Matic

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