When creating a new canvas users can choose whether it’s background is has color, or transparent.

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Transparent

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Color
The default color is white but other colors can be chosen by touching ‘Color’.

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The background color can also be changed after creating a new canvas.
One the side menu bar tapping the ‘Background color’ icon will bring up a menu.

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‘Make Transparent’ can be selected or deselected to change the background from color to transparent or vice versa.

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