This text field can contain stylized text and graphics. To cycle through all formatting options, use the keyboard shortcut Control + Shift + T to place focus on the toolbar and navigate between option heading names.
Common formatting keyboard shortcuts:
Control Shift B sets text to bold
Control Shift I sets text to italic
Control Shift U underlines text
Control Shift L adds an HTML link
To exit this text editor use the keyboard shortcut Control + Shift + ESC.