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 ①the Layer window, and add ②a new layer to the top.
From ①the Tool Selection window, select ②Filter.
Select ①Concentric Gradation.
①Move the slidersleft and right to adjust.
Scroll down to find ①color sliders. Drag the slider left and right to change the color. Drag ②the thumb to change the position. Tap on ③✓ to finish.
Once you are done adding gradation to the middle, you can add gradation around it. Open ①the Layer window, and add ②a new layer.
Launch the Concentric Gradation, and drag ①the sliders and②the thumbto create gradation outside. Tap ③✓ to finish.
Once you are done adding gradation around the outer, open ①the Layer window, and combine ②2 gradations to the layer.
Once combined, open ①blend mode and select ②Add and drag ③the opacity level slider to the left and right to adjust the opacity level.
Left is before applying gradation; right is after applying gradation. Adding gradation to the whole image changes the overall impression of the artwork.