Proportion preview

This option doesn’t control any of the pieces you’re actually meant to cut out from fabric. Instead it toggles the rendering of a to-scale line drawing of what your final Polly will look like with the options you’ve set.

The line drawing unfortunately doesn’t change the rendering for the head type you choose. The lines for the snouted head or hairline head won’t be shown on the preview. The scale of the head and all other pieces will.