[Bug] Incorrect terminal auto font size on KDE Plasma 5.

For reference,


depicts my actual font configuration, and its GUI depicts how the text should be rendered.

`WindTerm` uses pixels rather than points. https://pixelsconverter.com/pt-to-px demonstrates that 10 pt should approximately equate to 13 px

> 

but this isn't what occurs:

# `WindTerm`

## 10 pixels



## Default theme fonts



## 13 pixels



Because the Default theme fonts preference appears to set the font to 13 pixels as it should, yet the font appears much too large, there appears to a font size determination error. This might be because `WindTerm` appears to actually use pt rather than px, since 10 pt looks directly equivalent to 10 px.

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I'm using https://github.com/kingToolbox/WindTerm/releases/download/2.5.0/WindTerm_2.5.0_Linux_Portable_x86_64.tar.gz.

Start by reproducing the font-size behavior in the WindTerm 2.5.0 Linux portable release on KDE Plasma 5, using the reported 10 pt and 13 px comparisons. Compare the rendered terminal and default-theme fonts with the KDE configuration; the fix is complete when automatic sizing matches the configured font size and the reported discrepancy is resolved.

Written by the indexing model from the issue text.