Hi Michael,

thank you for deep explanation.

The most clear solution IMO would be to have this setting, ie StraightSnapLineColor in Theme manager.
Two colours setting Dashed line/Gap including transparency specified in theme would great and the most robust for any situation.
For example:
Color1(Dashed) = 255,255,255,0
Color2(Gap) = 0,0,0,0

This setting should be superior above any other setting if it's set in General/UI Theme some Theme except Default. If Default is set then settings in .ini file should be accepted as superior setting, which could mimic V4 behaviour.

Using inversion for Gap colour setting causes huge contrast between two colour for example magenta/green which is very unpleasant for eye perception especially together dark background.

Thanks
Mik