Feature request: annotation

[groob]

Is this something you'd consider adding? Example below:

Maybe it's already possible, but I wasn't able to get it to work. The closest I was able to get is to set the default Dots.style to 0 and case through the time values and set the style on a specific point to be different.

[yuzisee]

Once #58 & #55 are fixed, you should be able to do what you describe.