Add/Mul img creates only images of Float32 images, also from color images
If two images are added/multiplicated with Data processing -> Multiply Images / Add Images, the resulting image is type float, even if both input images are color images.
Proposal: implement create_RGBimageFromROI from create_imageFromROI
detect image type 2 colorimage > RGB channel splitting, then doing mult/add operations per channel (float/int per image channel) 2 float > continue as implemented yet 1 color 1 float> RGB channel split , applying operation with other float input on all channels