Sourcing icons

An icon is wrong when it is the wrong family, not when it is the wrong shape. Pick the source by what kind of mark it is, then match it to what the app already uses.

Route by mark type

Need	Source	Why
App UI glyph (menu, upload, search)	project's existing library — Lucide in shadcn projects	never add a second family for a glyph the current one has
Country flag	Iconify `circle-flags` / `flag` / `flagpack`	real flag geometry, MIT, no emoji-font dependency
File type (PDF, DOCX, ZIP)	Iconify `vscode-icons` / `catppuccin` / `material-icon-theme` (colour), or `lucide:file-text` (mono)	pick colour or mono to match the surrounding UI, not both
Brand logo, full colour, light/dark variants	svgl	curated, has wordmarks and theme variants
Tech / infra logo (OpenShift, Docker, Postgres, Redis)	Iconify `logos` (1800+, CC0), `devicon`, `skill-icons`	svgl has almost none of these; `logos` covers the whole stack in colour
Brand logo, monochrome long tail	Iconify `simple-icons` (3400+, CC0)	covers brands svgl does not
Anything else	Iconify search across all sets	200k+ icons, one API

Check the project's own library first: lucide:file-text, lucide:flag, lucide:file and friends exist, and one family stays one family.