flutter-perf-images-and-assets

Audits and fixes Flutter image and asset performance: oversized source images, images decoded far larger than displayed, cacheWidth/cacheHeight, resolution-aware asset variants (arbitrary densities, not just 1x/2x/3x), duplicate density variants, and choosing SVG/vector vs raster for logos, icons, illustrations, photos and thumbnails. Use for high memory on image-heavy screens, slow scrolling with images, or large app assets. Do not convert assets just because another format could be smaller.