Aipsview will now display on TrueColor windows. If the root window is TrueColor, all of aipsview's windows will also be TrueColor. One potential problem with using the TrueColor display is that whenever the colormap changes, all images must be redrawn using the new color map. When in TrueColor mode by default, when the user edits the colormap via the colormap editor, aipsview updates the colorbar immediately, but only updates the images when the mouse button is released. There is a Colormap Editor menu option Auto Update (see Section 3.3.1) when enables continuous redrawing of your images which can be selected if your machine is fast enough and your image windows are small enough.
When displaying on a TrueColor display, there won't be a problem with colormap flashing. Also, since aipsview doesn't have to worry about flashing, it can use more colors for the image. Actually, for TrueColor windows, aipsview emulates a 4096 entry color table so images may look smoother than in PseudoColor windows.