I don't know if this is the right place to put it but, Substance Painter is annoying with custom fonts (because you also need Substance Designer and the knowledge of how to use it) so I made one for the users who may need this.
It works like any other font, (well, it should) which is weirdly. If the text is too big for the brush then make the brush size 100-400 and the text size lower and pray it will work (I sure do love Substance Painter) (edited)
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