It's also worth noting other marker effects with triplet signs.
!NoteWorthyComposerClip(2.75,Single)
|Note|Dur:4th,Triplet=First|Pos:-6|Opts:Stem=Up
|Note|Dur:4th,Triplet|Pos:0|Opts:Stem=Up
|Note|Dur:4th,Triplet=End|Pos:5|Opts:Stem=Up
|Marker|Pos:-10|Target:Triplet
|Note|Dur:4th,Triplet=First|Pos:-6|Opts:Stem=Up
|Note|Dur:4th,Triplet|Pos:0|Opts:Stem=Up
|Note|Dur:4th,Triplet=End|Pos:5|Opts:Stem=Up
|Marker|Pos:-11|Target:Triplet
|Note|Dur:4th,Triplet=First|Pos:-6|Opts:Stem=Up
|Note|Dur:4th,Triplet|Pos:0|Opts:Stem=Up
|Marker|Pos:3|Target:Triplet
|Note|Dur:4th,Triplet=End|Pos:5|Opts:Stem=Up
|Marker|Pos:3|Target:Triplet
|Note|Dur:4th,Triplet=First|Pos:-6|Opts:Stem=Up
|Note|Dur:4th,Triplet|Pos:0|Opts:Stem=Up
|Marker|Pos:16|Target:Triplet
|Note|Dur:4th,Triplet=End|Pos:5|Opts:Stem=Up
|Marker|Pos:10|Target:Triplet|Visibility:Never
|Note|Dur:4th,Triplet=First|Pos:-6|Opts:Stem=Up
|Note|Dur:4th,Triplet|Pos:0|Opts:Stem=Up
|Note|Dur:4th,Triplet=End|Pos:5|Opts:Stem=Up
|Marker|Pos:3|Target:Triplet|Color:1
|Note|Dur:4th,Triplet=First|Pos:-6|Opts:Stem=Up
|Note|Dur:4th,Triplet|Pos:0|Opts:Stem=Up
|Marker|Pos:16|Target:Triplet
|Note|Dur:4th,Triplet=End|Pos:5|Opts:Stem=Up
!NoteWorthyComposerClip-End
The first triplet is the Noteworthy default for that combination of notes.
The second triplet shows the triplet sign moved below the notes even though the notes are tails up.
The third triplet shows a sloping triplet sign below the notes
The fourth triplet shows a sloping triplet sign above the notes
The fifth triplet shows the triplet sign being made invisible.
The sixth triplet show the triplet sign being a different color to the notes.