Open icon systems in : Audience

In reports, ads and assignments it fits slides, product UI, posters, school worksheets. Skip it when mixing five icon styles on one slide. This page gathers anatomy, fit, craft, failure modes and work / ads / school recipes for Open icon systems. When should I pick Open icon systems?

When the story is: slides, product UI, posters, school worksheets. When should I avoid Open icon systems? Skip it in cases like: mixing five icon styles on one slide. Feather to Lucide and other ISC/MIT SVG icon families on GitHub stroke or fill metaphors at a shared grid and weight

Yes if one claim is visible at a glance in Meta, Google and retail print; otherwise link to a full figure. Yes for lab reports and poster boards if axes, units and a source line are present. Excel or Google Sheets or PowerPoint; export SVG/PDF. Do not rely on hue alone. Label directly and check greyscale.