Looks like there’s a tiny glitch in the Florent design. When you generate a pattern from the design, Part 5, Brim Interfacing, shows “cut 1 from plugin-annotations:rigidinterfacing”. I presume this is just “rigid interfacing”.
Speaking of which, any suggestions on a non-plastic rigid interfacing? Trying to ban as much plastic as possible from my life & projects. I see historically “buckram” was used, but a glue-infused loose-woven cotton or linen sheet is something I’d guess I’d have a hard time finding 
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