/**
 * The credit a canvas carries, and the one switch that removes it.
 *
 * A free shader is paid for in links. The badge is how: a small, real,
 * followed anchor to the shader's own page, drawn in the corner of the canvas
 * it credits. It is deliberately not clever — no hidden text, no anchor with
 * no size, no URL smuggled into a comment. A credit that a reader cannot see
 * is worth nothing to a search engine and is against their policies besides.
 *
 * Nothing here checks a licence, and nothing here reaches the network. The
 * runtime stays MIT and stays offline: `setBadge(false)` is one call, it works
 * for everybody, and what makes it honest is the LICENSE file that ships beside
 * a free shader, not a lock in this file. Enforcement in a bundle a reader can
 * edit is theatre, and theatre is worse than terms.
 *
 * The setting is page-wide for the same reason `setQualityTier` is: an app
 * either credits or it does not, and passing the same prop to forty canvases
 * is how one gets missed.
 */
/**
 * Which corner the credit sits in.
 *
 * Four corners and nothing else — no offset, no opacity, no class to style it
 * with. A badge that collides with a reader's own controls is a reason to strip
 * it rather than move it, so moving it has to be easy. Every other knob anyone
 * would ask for is a knob for hiding it while claiming it is on, and there is
 * already a switch for turning it off honestly.
 */
export type BadgeCorner = "bottom-right" | "bottom-left" | "top-right" | "top-left";
/** The inset of each corner, in pixels from the two edges it touches. */
export declare const BADGE_CORNERS: Record<BadgeCorner, Record<string, number>>;
/**
 * Show or hide the credit on every canvas on the page.
 *
 * Call it at module scope, in a module both the server and the browser load.
 * The badge is rendered, not mounted — setting this inside an effect would
 * render one on the server and none in the browser, which is a hydration
 * mismatch rather than a hidden badge.
 */
export declare function setBadge(shown: boolean): void;
/** Whether the page credits shadertown. Defaults to true. */
export declare function badgeShown(): boolean;
/**
 * Put the credit in a different corner of every canvas on the page. Same rule
 * as `setBadge`: module scope, where the server and the browser both run it.
 */
export declare function setBadgePosition(corner: BadgeCorner): void;
/** The corner the page puts the credit in. Defaults to `bottom-right`. */
export declare function badgePosition(): BadgeCorner;
/**
 * Where a badge points: the page for the shader it is drawn on, not the home
 * page. One badge per shader spreads the links across the catalogue the way a
 * hand-written link would, and it takes the reader to the thing they just saw
 * rather than to a pitch.
 */
export declare function badgeHref(shader: string): string;
/** The anchor text. The brand, and enough words to say what the link is. */
export declare const BADGE_PREFIX = "Shaders by";
export declare const BADGE_NAME = "shadertown";
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