# All files / src themes.ts

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     // ============================================================================
    // Theme Registry — Grackle Web UI
    // ============================================================================
    // Central registry of available themes. To add a new theme:
    //   1. Add a ThemeDefinition entry to THEMES below
    //   2. Add a matching [data-theme="<id>"] block in theme.scss
    //   3. That's it — the Settings UI, useTheme hook, and persistence all
    //      pick up new entries automatically.
    // ============================================================================

    /** Describes a single UI theme. */
    export interface ThemeDefinition {
      /** Unique identifier — must match the data-theme attribute value in theme.scss. */
      id: string;
      /** Display name shown in Settings. */
      label: string;
      /** Short description shown in Settings. */
      description: string;
      /** Preview colors shown as swatches in Settings (bg, accent, text). */
      swatches?: string[];
      /** If set, this theme has a light variant toggled in Settings. */
      variantLightId?: string;
      /** If set, this theme has a dark variant toggled in Settings. */
      variantDarkId?: string;
      /** If true, this entry is a variant and should not be rendered as a standalone card. */
      hidden?: boolean;
    }

    /**
     * All available themes.  Order determines display order in Settings.
     * Themes with `hidden: true` are valid IDs but rendered as part of
     * their parent's light/dark toggle rather than as separate cards.
     */
    export const THEMES: readonly ThemeDefinition[] = [
      {
        id: "grackle",
        label: "Grackle",
        description: "The default Grackle theme — iridescent purple on clean dark.",
        swatches: ["#0e1218", "#8b5cf6", "#60a5fa", "#e5e7eb", "#34d399"],
        variantLightId: "grackle-light",
        variantDarkId: "grackle-dark",
      },
      {
        id: "grackle-light",
        label: "Grackle Light",
        description: "Light Grackle variant.",
        hidden: true,
      },
      {
        id: "grackle-dark",
        label: "Grackle Dark",
        description: "Dark Grackle variant.",
        hidden: true,
      },
      {
        id: "glass",
        label: "Glassmorphism",
        description: "Dark frosted-glass aesthetic with backdrop blur effects.",
        swatches: ["#0a0c14", "#4ecca3", "#70a1ff", "#e2e8f0", "#a855f7"],
      },
      {
        id: "matrix",
        label: "Matrix",
        description: "Phosphor-green CRT terminal with scanlines and glow.",
        swatches: ["#050505", "#00ff41", "#00bfff", "#33ff77", "#ffb000"],
      },
      {
        id: "brutalist",
        label: "Neubrutalism",
        description: "Thick borders, raw colors, bold type — ugly on purpose.",
        swatches: ["#f5f0e8", "#ff5757", "#5ce1e6", "#1a1a1a", "#ffde59"],
        variantLightId: "brutalist-light",
        variantDarkId: "brutalist-dark",
      },
      {
        id: "brutalist-light",
        label: "Neubrutalism Light",
        description: "Light neubrutalism variant.",
        hidden: true,
      },
      {
        id: "brutalist-dark",
        label: "Neubrutalism Dark",
        description: "Dark neubrutalism variant.",
        hidden: true,
      },
      {
        id: "monokai",
        label: "Monokai",
        description: "Classic warm editor palette — pink, green, and purple.",
        swatches: ["#272822", "#f92672", "#a6e22e", "#f8f8f2", "#ae81ff"],
        variantLightId: "monokai-light",
        variantDarkId: "monokai-dark",
      },
      {
        id: "monokai-dark",
        label: "Monokai Dark",
        description: "Dark Monokai variant.",
        hidden: true,
      },
      {
        id: "monokai-light",
        label: "Monokai Light",
        description: "Light Monokai variant.",
        hidden: true,
      },
      {
        id: "ubuntu",
        label: "Ubuntu",
        description: "Aubergine terminal with the GNOME Tango palette.",
        swatches: ["#300a24", "#8ae234", "#ef2929", "#eeeeec", "#fce94f"],
      },
      {
        id: "sandstone",
        label: "Sandstone",
        description: "Warm terracotta accent on dark brown, in the style of Claude Code.",
        swatches: ["#1a1815", "#C15F3C", "#6b8afd", "#e8e6e3", "#a78bfa"],
      },
      {
        id: "verdigris",
        label: "Verdigris",
        description: "Teal accent on charcoal, in the style of ChatGPT.",
        swatches: ["#141414", "#00a67e", "#3b82f6", "#ececec", "#ab68ff"],
      },
      {
        id: "primer",
        label: "Primer",
        description: "Blue accent on ink-dark grey, in the style of GitHub.",
        swatches: ["#0d1117", "#58a6ff", "#3fb950", "#c9d1d9", "#bc8cff"],
      },
    ] as const;

    /** The set of valid theme IDs derived from the registry. */
    export const THEME_IDS: ReadonlySet<string> = new Set(THEMES.map((t) => t.id));

    /** The default theme ID used when nothing is persisted. */
    export const DEFAULT_THEME_ID: string = "grackle";

    /** Look up a theme definition by ID, returning undefined if not found. */
    export function getThemeById(id: string): ThemeDefinition | undefined {
      return THEMES.find((t) => t.id === id);
    }