Plain creates a new text.Rich without any formatting segments.

SolidColor takes in a 24-bit RGB color and overrides the alpha bits with 0xFF, making the color solid.

Bold represents bold text.

Dimmed represents dimmed text, typically slightly less visible than other text.

Italics represents italicized text.

Monospace represents monospaced text, typically for inline code.

Normal is a zero-value attribute.

Spoiler represents spoiler text, which usually looks blacked out until hovered or clicked on.

Strikethrough represents struckthrough text.

Underline represents underlined text.

Rich is a normal text wrapped with optional format segments.

Attributor is a rich text markup format that a segment could implement.

Avatarer implies the segment should be replaced with a rounded-corners image.

Codeblocker is a codeblock that supports optional syntax highlighting using the language given.

Colorer is a text color format that a segment could implement.

Imager implies the segment should be replaced with a (possibly inlined) image.

Linker is a hyperlink format that a segment could implement.

Mentioner implies that the segment can be clickable, and when clicked it should open up a dialog containing information from MentionInfo().

MessageReferencer is similar to Linker, except it references a message instead of an arbitrary URL.

Quoteblocker represents a quoteblock that behaves similarly to the blockquote HTML tag.

Segment is the minimum requirement for a format segment.

Attribute is the type for basic rich text markup attributes.