Smart Highlighting: Automatically detects and highlights:
- Uppercase words (e.g., "IMPORTANT")
- Capitalized words (e.g., "Keyword")
- Mixed case and hyphenated words
CSS Custom Highlight API: Uses the modern CSS Custom Highlight API for high performance and native-feeling highlights without cluttering the DOM.
Adaptive Contrast: Intelligently adjusts highlight colors based on the background color (light or dark) to ensure readability.
Smart Exclusions:
- Ignores sentence starters to prevent over-highlighting.
- Skips specific tags like scripts, styles, inputs, code blocks, and links (anchor tags).
- Respects contenteditable elements.
Custom Highlighting:
- Define custom keywords with specific colors (e.g., yellow: Python, Java).
- Supports case-insensitive and whole-word matching.
Advanced Keyword Registry:
- Persistent Memory: Remembers highlighted keywords per-domain or globally (*.*).
- Retroactive Highlighting: If a keyword is discovered mid-sentence, it gets added to the registry. On subsequent visits (or retroactively on the same page), it will be highlighted even if it appears at the start of a sentence.
- Configurable Scope: Define maximum registry size and scope (global vs. domain-specific).
Customizable:
- Toggle extension on/off globally or per-site.
- Manage site exclusions/inclusions via the options page.
- Advanced Settings:
  - Minimum Words in Block: Configure the minimum word count for a block to be highlighted (default: 10).
  - Custom Colors: Adjust the background highlight colors and opacity for both light and dark modes.