/**
 * PPTX import HTML fixes that pptxtojson 2.2.3 does not always emit:
 * inherited master/layout bullets arrive as hanging-indent <p> instead of <ul>,
 * and http(s) runs may be plain text even when PowerPoint treats them as links.
 */
export declare const PPTX_HYPERLINK_COLOR = "#0563C1";
/** Office theme `folHlink` (PowerPoint followed/visited hyperlink). */
export declare const PPTX_FOLLOWED_HYPERLINK_COLOR = "#954F72";
/** PowerPoint keeps empty body paragraphs as vertical gaps, not bullets. */
export declare function isEmptyListParagraph(inner: string): boolean;
/**
 * Consecutive body paragraphs with hanging indent (master bullet indent) become
 * a real <ul> so ProseMirror creates bullet_list and the toolbar list chip activates.
 * Empty hanging paragraphs stay spacers (PowerPoint does not draw a bullet for them).
 */
export declare function wrapHangingIndentParagraphsAsLists(html: string, ratio?: number): string;
/**
 * Wrap leftover http(s) URLs that are not already inside <a>. OOXML hyperlinks
 * (a:hlinkClick) are preferred; this only catches display-time / unlinked URL text.
 */
export declare function linkifyPlainUrls(html: string): string;
/**
 * Drop baked-in run colors on links so CSS `a` / `a:visited` can paint them
 * (PowerPoint hlink blue vs folHlink purple). Keep font-size and other run props.
 */
export declare function styleImportedHyperlinks(html: string): string;