You are right, I tried to change the font and it seems to appear the same. The only way to change the appearance is to use a different font like in the attached view, the lightest one is MM font which can be stretched and manipulated to the desired 'lightness' All others look 'Bold'
jacek lisiewicz
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arkhos-tekton, architects
carmichael, ca
Mac OS X 10.15.5
IMac Retina 5K, Intel Core I7
32 GIG Memory, AMD Radeon R9
ArchiCAD 24