— text formatting: bold, italic, underline, strikethrough, monospace, spoilers, highlights, links, formatted dates, superscript, subscript, and inline formulas;
— message structure: six heading levels, paragraphs, dividers, footers, collapsible sections, code blocks, and standalone mathematical formulas;
— lists and quotes: bulleted and numbered lists, checklists, regular quotes, pull quotes, and quotes with nested formatting;
— tables: rows, columns, headers, and formatted text inside cells;
— media: photos, collages, slideshows, videos, and audio;
— other blocks: locations with maps, and multiple content types combined within a single message.