What would you use to access the tertiary brand color in a theme's fields.json file?

In fields.json , HubSpot lets brand colors be referenced through brand_settings tokens, including the brand_settings.colors array. HubSpot’s documentation shows array-based color access using zero-based indexing, where the first entry is colors[0] and additional colors continue from colors[1] onward. That means the third color in the sequence is accessed at index 2. This is why the correct token uses the array form rather than a camel-case tertiary property name. HubSpot Developers