Created attachment 137205 [details]
Missing icon nv02.png (or some link to sc_freeline_unfilled.png) with implementation of "helpimg" icon set fake theme.
But, does this feature even shows in Navigator, rather seems to only appear on context menu during presentation as "Mouse pointer as ~pen"
The icon is there in 5.1 so this is a regression.
Works now: https://helponline.libreoffice.org/latest/en-US/text/simpress/01/02110000.html?DbPAR=IMPRESS#bm_id3149664
The offline help is now the same as online.