v3.0.8

Added

• Invert Colors — new toolbar button to invert colors in the selected region. Apply twice to revert. Supports undo. Can be disabled in Preferences → Tools.
• Mouse wheel zoom — scroll wheel now zooms in/out without holding Cmd (trackpad behavior unchanged).

Fixed

• First click ignored on slower Macs — overlay now accepts clicks immediately via acceptsFirstMouse, fixing a race condition where the first selection drag was dropped on Intel Macs or when app activation was slow.
• Blurry captures on mixed-DPI setups — screenshots from a 1x external monitor were being interpolation-upscaled to 2x when a Retina display was also connected. Output now matches the source display's native pixel density.