Pencil drawings can be added to your cover or spine design using the 'PENCIL' option shown on the menu under shape.

Pencil Colour

Select the 'PENCIL' option and change the colour using the 'BORDER' option.
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If you need to change the colour of an existing pencil drawing, select it and change the colour using the 'BORDER' option.

Pencil Size

Select the 'PENCIL' option and change the thickness using the 'BORDER SIZE' option.