Tips: Onion skin
Onion skin is a function for displaying the cels surrounding the selected cel to help you keep the cels consistent. You can show or hide the onion skin by clicking [Enable onion skin] on the [Timeline] palette. Displaying the onion skin allows you to refer to cels that have already been drawn when drawing the current cel.
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You can set the display color and number of cels displayed for the onion skin by selecting the [Animation] menu → [Show animation cels] → [Onion skin settings] to display the [Onion skin settings] dialog box.
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