Correct: for the PCB board outline, Flux needs a single closed outer contour. It generally won’t use an SVG icon with multiple paths/holes as the board shape directly.
For glasses, that means:
- ✅ Use the SVG outer perimeter as the PCB outline.
- ❌ Don’t expect the lens openings / holes inside the glasses icon to automatically become board cutouts.
- ✅ Add lens openings separately as mechanical cutouts / routed slots if Flux supports them in your layout flow, or represent them later for fabrication.
- ✅ Best SVG format: one flattened filled path for the outside edge, no groups, no strokes, no masks, no transforms.
So the workflow is usually:
- Export only the outside silhouette of the glasses frame as one closed path.
- Apply that as the PCB board outline.
- Add any internal holes/cutouts separately as mechanical features.
For now, if you want the front of a glasses frame as the PCB, make the board outline the solid glasses-front outer shape, then treat the lens openings as separate cutouts rather than part of the SVG board-shape path.