Question

How come the images for zoom in zoom out does the reverse of what they should? + zooms out and - zooms in!

Answer

There are two common takes on this: + goes closer - goes further away. OR + shows more time and - shows less time... We have chosen the latter one. Right or wrong?  Anyway you can switch the icons by implementing Gantt_ASP.OnGetResource

Implement Gantt_ASP.OnGetResource and when id == "PlexityHide.GTP.WEB.zoomin.gif" etc. you can send in another image?