/**
 * The vendo banner — the real logo at terminal resolution.
 *
 * The art is DATA, not drawing code: the Vendo mark (four stepped squares and
 * the flowing ribbon) and the lowercase wordmark, rasterized from the logo to
 * half-block cells (`█ ▀ ▄`) at two pixel rows per text row. Colour is one
 * left-to-right #6c3bff → #a78bfa ramp mapped across the art's COLUMNS, so the
 * gradient runs through the whole mark instead of restarting on every row;
 * terminals without truecolor get the ANSI magenta pair.
 *
 * Three arrival concepts ship (the CLI plays BANNER_CONCEPT). Whichever plays,
 * the last frame is the settled frame — a terminal that drops every frame in
 * between still lands on the finished mark. It plays once and never loops, and
 * only a TTY with colour ever sees it: the gate is pretty.ts's usePrettyOutput.
 */
export type BannerColorMode = "truecolor" | "ansi";
export type BannerConcept = "assembly" | "flow" | "shimmer";
/** 12 rows × 72 columns — wordmark beside the mark; fits an 80-column window
    and costs less than half the scrollback of the large art. */
export declare const BANNER_COMPACT: readonly string[];
/** 25 rows × 44 columns — wordmark stacked under the mark. */
export declare const BANNER_LARGE: readonly string[];
/** The dim line under the banner: what the product is, and where the docs are. */
export declare const BANNER_TAGLINE = " Customize your product with an embedded agent \u2014 docs.vendo.run";
/** The arrival the CLI plays. Decided: the flow. */
export declare const BANNER_CONCEPT: BannerConcept;
/** The settled banner — every concept's last frame, and what a run that never
    animates prints. */
export declare function renderBanner(art: readonly string[], mode: BannerColorMode): string;
/**
 * The arrival, as ANSI frames. LAW: the last frame ALWAYS equals the settled
 * frame, for every concept — the animation can only ever be a faster way to
 * arrive at `renderBanner`, never a different picture.
 */
export declare function bannerFrames(art: readonly string[], mode: BannerColorMode, concept: BannerConcept): string[];
/** Truecolor when the terminal says so; ANSI magenta otherwise. */
export declare function bannerColorMode(env?: Record<string, string | undefined>): BannerColorMode;
/**
 * Play the frames in place: cursor-up over the block and redraw, once. No
 * alternate screen buffer — the settled banner stays in the scrollback as the
 * top of the transcript. A resize mid-play costs one ragged frame, then the
 * settled one.
 *
 * `signal` cuts it short, and the settled frame is drawn INSIDE abort() —
 * synchronously, before abort() returns — so a run that has to end mid-arrival
 * (an interrupt) leaves the finished mark behind, never a half-drawn one.
 * Ordinary printing needs no abort: it goes BELOW the art (see `below`).
 */
export declare function playBanner(write: (chunk: string) => void, frames: readonly string[], frameMs?: number, signal?: AbortSignal, 
/** SCREEN rows of content the caller has printed BELOW the art since it
    started. When provided, each frame repaints the art in place above that
    content (save cursor → up over content+art → paint → restore), so the run
    keeps talking while the wave still plays. The caller maintains the count
    and owes screen rows, not lines — a line that wraps is more than one. */
below?: {
    rows: number;
}): Promise<void>;