This function allows you to add circular gradation. Change the number and contrast to change the shape.
Prepare an illustration you would like to add gradation to.
Open ① the Layer window, and add ② a new layer to the top.
Tap ②Multiply from ①Blend Mode. Drag the slider of ③Opacity to adjust as you like.
Tap ②Filter from ①Tool Selection window .
Tap ①Concentric Gradation .
Drag the ①Slider to adjust. You can move the gradient start position by dragging ② .
Tap the ① Knob twice to open the Color Picker. Drag the ②Slider to adjust the color.
When finished, return to the canvas with ①✓ button .
And you're finished.