original data no.1original data no.2original data no.3

test data no.7
[red "gproe"] overlap-chromakey , --drag(pick up white pixel) to tulip--
[blue "gproe"] overlap-gradation-c , --drag to tulip--
[yellow "gproe"] frame-ellipse , overlap-chromakey , --drag(pick up yellow pixel) to tulip--

(cautions about chromakey composition)
When drag&drop, the color of the point you pick up the image turns into a transparent color.

test data no.8
[hibiscus] overlap-gradation-c , --drag to gproe--