Settings – PrintBlob

Open WooCommerce › Settings › PrintBlob.

Setting	What it does
Designer page	Where the Colours block and colour links send customers. Leave empty to use the first page that contains the designer.
Colour attribute	The product attribute whose terms are the product colours. Each colour gets a colour value and a photo on its edit screen.
Size attribute	The product attribute that holds sizes, shown as size buttons in the designer.
Largest customer image (MB)	The largest file a customer can upload. Default 20.
Keep unordered designs (days)	Designs added to a cart but never ordered are deleted after this many days. Ordered designs are kept with the order. Default 7.

With PrintBlob Pro there are two more sections: Licence (see Licence and updates) and Fonts (see PrintBlob Pro).