Smart Keyword Highlighter

About

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.