Origin tooltip uses # comment at the beginning of code to generate tooltip, can be multiple lines up to 10 #.
For example, add a text object on the graph. Alt + Double-click on the object to open Text Object dialog. In the programming tab, choose Script Run After Button Up, add below code. Click OK.
#When <b>moving this object</b>
#It will type
# "hello"
#or color as <span style="color:SteelBlue;">hello</span>
type Hello;
Mouse over the button, tooltip will be shown.
