The Charting Library supports the display of marks on the bars. Here is an example:
Each mark can have a color, size, label and a pop-up message. Marks are requested from your back-end if it confirmed that it support them. Marks are designed to give you an ability to show a number of events attached to bars. Here are a few examples:
- News
- Some very specific bar configurations
- Splits/Dividends
- .. etc.