The Color by Venn feature is used to differentiate entities in an open Profile Plot, Scatter Plot, or Cy3 vs Cy5 Plot based on the presence of these entities in the different regions of a Venn Diagram.

The Color by Venn option is available for Profile Plots, Scatter Plots, and Cy3 vs Cy5 Plots.

The Profile Plot will not change if none of the entities that it contains are present in the selected Venn Diagram.

To undo the effect of Color by Venn, relaunch the respective plot and its rendering will return to the original status.

Yes, the Color by Venn option will also work in this situation.

No, GeneSpring provides you with a list of all the open Venn Diagrams, from which you can choose only one for applying the Color by Venn option to any of your open Profile Plots, Scatter Plots, or Cy3 vs Cy5 Plots.