Visual Verifier

Scope

• Capture and manage "Golden Master" screenshots of game scenes.
• Perform visual regression testing via image diffing.
• Detect visual glitches (garbage tiles, palette errors).
• Verify UI state (text boxes, menu rendering).

Core Capabilities

1. Screenshot Capture

Save the current emulator frame as a reference.

• capture title_screen: Saves assets/visual_masters/title_screen.png.

2. Regression Testing

Compare the current frame against a saved master.

• verify title_screen: Reports similarity percentage (e.g., 99.5%).
• Thresholds: Customizable (default 95%).