Firestorm 2 is a bitmap editor built natively for macOS. Manipulate images with a flexible 0.1x to 7.5x canvas, precise "marching ants" selection tools, and an advanced layer-based compositing system that supports vector shapes, text, and native SF Symbols. Export your full composition in massive standard formats (PNG, HEIF, etc.), export isolated layers independently, or generate flattened/unflattened Xcode icon packages for macOS and iOS applications. Full undo/redo stacks are supported.