Lightbox

The Lightbox (also know as onion skinning) displays the drawings on keys before and after the current key. These drawings are semi-transparent to help distinguish them from the current key.

The display of Lightbox keys before and after can be toggled independently through the main menu (Blue Pencil->Lightbox) and the number of keys displayed can be changed in the settings dialog (Blue Pencil->Lightbox->Settings...).

From the Toolbox UI:

Toggles the display of keys prior to the current time. Right-click on this button to change the lightbox settings.
Toggles the display of keys after to the current time. Right-click on this button to change the lightbox settings.

Note: For the best performance during playback in Maya, turn off the Lightbox.

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