+ (roman (if (eq? (ly:get-option 'backend) 'svg)
+ "serif" "LilyPond Serif"))
+ (sans (if (eq? (ly:get-option 'backend) 'svg)
+ "sans-serif" "LilyPond Sans Serif"))
+ (typewriter (if (eq? (ly:get-option 'backend) 'svg)
+ "monospace" "LilyPond Monospace"))