195 unmodified, native-proportion PNGs from Flagpedia’s FlagCDN, at 2560px wide. All assets are bundled locally; the application makes no network requests.
Flagpedia identifies its flag images as public domain, usable commercially and noncommercially without restriction: https://flagpedia.net/terms https://flagpedia.net/download
Scope: https://flagpedia.net/sovereign-states 193 UN members plus Palestine and Vatican City; 195 flags in total. Direct source for each file: https://flagcdn.com/w2560/{lowercase-code}.png
See docs/flag-assets.json for retrieval date, per-file URLs, dimensions and SHA-256 checksums, and docs/COUNTRY_CATALOG.md for selection conventions. The source’s Afghanistan republic tricolor is retained; flag variants follow the source rather than an independent recognition policy. Syria uses the green/white/black three-star flag. Venezuela and Peru use civil national variants without state coats of arms.
English names use the source list with Ivory Coast and Sao Tome and Principe as unaccented English display names. Original adoption years remain unchanged; new adoption years are unknown and represented as null.