Smart GreenScreen

Smart GreenScreen is a professional chroma key app for macOS and iOS with tracking markers, overlay support, and high-resolution PNG export. It replaces a selected background color (for example green) with another color and helps with camera tracking, livestreams, conferencing, and studio production workflows.

Core Features

Greenscreen / Chroma Key

• Replaces a background color with another color in real time.

• Adjustable RGB and brightness for both background and marker colors.

• 25 color presets for fast setup.

• “Slider for marker” toggle: sliders can control either background or marker color.

• Tab key toggles greenscreen on/off (black when off).

• Overlay image with alpha support (PNG transparency).

Tracking Markers

• 4 marker types:

1) Cross

2) Triangle target

3) Checkerboard circle

4) Circle+Cross

• Up to 12 markers simultaneously.

• Adjustable marker size (3–25% of screen).

• Adjustable stroke width for cross-style markers (2–12).

• Invert option for better visibility.

• Add, move, and delete markers with dedicated modes and clear visual mode indicators.

• Default marker color is black on first launch for strong contrast on green backgrounds.

Overlay Tools

• Collapsible Overlay section in Settings.

• Base overlay image: Load/Remove PNG with transparency.

• Floating PNG overlays: import multiple transparent PNGs, place them freely on screen, and position them like markers.

• Floating overlays can be moved and deleted using the same Move/Delete workflow as markers.

• Dedicated delete action for the overlay image.

High-Resolution PNG Export (Unique Feature)

• Export the current greenscreen scene as PNG, including markers and overlays.

• Preset export sizes from HD up to 8K.

• Custom pixel size input for any workflow.

• iOS export options:

• Share sheet export (AirDrop, Messages, Mail, etc.)

• Save to Files / iCloud

• macOS export via native save dialog.

• Great for VFX planning, camera-tracking references, scene setup docs, and still frame delivery.

Keyboard Features (iOS)

• Optional on-screen keyboard for blind typing on the greenscreen.

• “On marker tap only” mode: keyboard appears when tapping a marker, hides with Enter.

• Optional clean typing mode with reduced suggestion/autocorrect distractions.

• External keyboard support with Tab toggle behavior matching macOS.

Menu Access

• macOS: Shift+Click or Cmd+M.

• iOS: 3-finger tap (always available), configurable multi-tap (3–10), or long press.

Settings & UX

• Save & Load Greenscreen Presets

• Auto-saved settings.

• Reset to defaults.

• Collapsible sections for clearer navigation (Colors, Marker, Overlay, Keyboard Setup, Presets, Export).

• Consistent icon-based controls and improved spacing for fast operation during production.

Technical Details

• Built with SwiftUI.

• Localization: DE, EN, ES, FR, IT, JA, PT, RU, ZH.

• Settings stored as JSON in Application Support.

• macOS: window + fullscreen, optional auto-hiding title bar.

• iOS: fullscreen layout optimized for notch and different screen sizes.

Target Audience

• Video production / post-production

• Livestreaming

• Video conferencing

• Camera tracking with greenscreen backgrounds

• Presenters and performers using marker-based typing workflows