% input feta-params;
mode_setup;
-ex# := (design_size / 2.4)* pt#;
-descender# := 0.5 ex#;
-ascender# := 0.75 ex#;
-staffspace# := 1.75 / 2.0 * ex#;
-stafflinethickness# := staffspace# / 10;
-
-define_pixels (staffspace, stafflinethickness, ex, descender, ascender);
-
-fet_beginfont("feta-din", design_size);
+fet_beginfont("feta-din", dynamic_design_size, "TeX text");
input feta-din-code;