clearCache static method
void
clearCache()
Empties the cache.
Icons are small, so this is rarely about memory. It matters when a source has changed behind a stable key — a hot-reloaded asset, a re-fetched URL.
Note that anything already handed to a widget keeps working; the next load simply produces a new instance, which a mounted MorphIcon will treat as a new icon and animate to.
Implementation
static void clearCache() {
_cache.clear();
_pending.clear();
}