It can be troublesome with so many processes to create chromatic aberration. However using this function, chromatic aberration can be produced an instant.
Open the ① Layer window and tap the ② Import from Photo Library. From the Photo Library load the images you want to apply chromatic aberration background to.
Move with ① one finger drag, ② two finger pinch in and pinch out to adjust the position and size by scaling and tap the ③ ✓ button.
While the image is being read, the app will ask "Extract Line Drawing?", so tap ① Cancel.
Once the image has been imported, tap ②Filter from ①Tool Selection window .
Tap ①Channels Shift (Zooming) .
Drag the slider of ①Distance and Color Order to adjust and move the position of ②knob . After adjusting, return to the canvas with ③✓ button .
Using this filter, yo can produce chromatic aberration (Channels Shift) easily. It is good to use when you want to make slight changes to your illustration.