/hint command

Shows a pop-up in the corner of the screen for the targeted player with text inside them. They are similar to the legacy console Tutorial hints. They also support item images, clickable text, hovers and others.

Useful for displaying tutorials, hints, warnings, infos and others, without having to flood the chat.

Syntax:
/hint [target] [text] [location]

target=Which player should the hint be shown to.
text=The content displayed. Supports both strings and formatted text.
Location=Which GUI should the hint displayed in.