'Invert Color' enables you to invert the colors of illustrations and photographs. By inverting the colors of the entire image or a part of it, you can create a completely different impression from the original image.
Select ②Filter from the ①Tool Select window.
Select ①Invert Color.
Adjust the colors by dragging the ①Slider to the left or right. When you have finished adjusting the colors, return to the canvas by tapping ②✓.
Inversion is complete!
Filter (Draw): Radial Line to create a more compelling image.
Picture provided by: https://publicdomainq.net/siberian-tiger-animal-0065794/