Please see the method SetFonts( aFonts ) of TGraph class in tgraph.prg. This class uses 9 fonts for 1) Title, 2) xFont, 3) yFont, 4) Legends, 5) Subtitle, 6) xTitle, 7) yTitle, 8 ) Values, 9) Values bold You may set the font you want for values using :SetFonts( { nil, nil, nil, nil, nil, ...