DRC: [text_thickness]: Text thickness out of range (TrueType font characters with insufficient stroke weight)

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When running DRC in KiCAD 7.0.6 PCB Editor, I get the following warning for every text object that uses any TrueType font:
[text_thickness]: Text thickness out of range (TrueType font characters with insufficient stroke weight)

Observations:

  1. Manipulating File->Board Setup…->Design Rules->Constraints->Silkscreen->Minimum text thickness parameter does not help at all, in fact even if I set it all the way to zero, the warning still shows up during DRC.
  2. For some TrueType fonts the problem disappears if I increase the width and height of the characters from 1 mm to 2 mm, for some other fonts it never disappears.
  3. The problem does not happen with Arial font (which is also TrueType) at width and height of 1 mm
  4. The problem never happens with stock KiCAD font.
  5. It happens to text objects that are both standalone as well as those that are part of the footprints.
  6. Running DRC in Footprint Editor on identical text objects does not yield a warning

So what I don’t understand is why reducing constraint (as per item 1 above) does not resolve the problem at width and height of 1 mm. Am I doing something wrong or should I file a bug report?

P.S. An no, using stock KiCAD font is not a valid solution - I must use Cascadia Code because it visually distinguishes between zeros and letter O and because it is monospaced.

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