From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
I believe that ROI Color is a property of the image. I know at one time I changed the color of the ROI to make it stand out better, but I don't think I tried having multiple ROIs with different colors.
An ROI is a property of an Image (display "indicator" on the Front Panel). If you right-click the Image indicator on the Block Diagram and choose "Create Property", you can create a Property Node for the Image called ROI Color.
An ROI is just a marked region on the Image. It does not have any Text associated with it.