warn_about_missing_glyphs
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warn_about_missing_glyphs = true#
When set to true, if a glyph cannot be found for a given codepoint, then the configuration error window will be shown with a pointer to the font configuration docs.
You can set warn_about_missing_glyphs = false to prevent the configuration
error window from being displayed.
The default is warn_about_missing_glyphs = true.