Note that what styles that can be used is defined by the system or your terminal software, and may not appear as they should.

bold Bold text
dim Dim or faint text
italic Italic text
underline Underlined text
invert Swaps the foreground and background colors
conceal Hides the text
slowblink Makes text blink slowly
rapidblink Makes text blink
strikethrough Shows text with a horizontal line through the center
link Creates a clickable link within text