FitContribution: How to show states in charts, as it's done with "Run/Walk"

Hello,

on the Garmin website/in the app, there is a Activity chart called "Run/Walk" which shows 3 states (Idle, Walk and Run), and each state is colored differently (the first chart):

I'm reading data ("Mode") from a BLE device (the second chart in the screenshot), and I want to visualize the 3 possible options in the same way. Unfortunately, the available data types are only different numbers and their units, but I don't see an option to specify that "0 equals standby; 1 equals manual; 2 equals automatic". Beside that, it's only possible to define only one color per chart.

Does anyone know if that's possible?

Thanks!

Many regards,
Jens