# Chroma Advanced Parameter Adjust

| Message                                           | Description                                                                                                                                                                                         | Arguments |
| ------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------- |
| `/mixeffect/usk/chroma-advanced/parameter/adjust` | Adjust a single the Chroma Advanced upstream keyer parameter. This is available on certain ATEM switchers such as the ATEM Mini line, ATEM Television Studio Pro 4K, and the ATEM Constellation 8K. | Multiple  |

| Argument         | Type    | Description                                                                                                                                                                                                    |
| ---------------- | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Parameter        | Integer | <p>0 = Foreground Level<br>1 = Background Level<br>2 = Key Edge<br>3 = Spill Suppression<br>4 = Flare Suppression<br>5 = Brightness<br>6 = Contrast<br>7 = Saturation<br>8 = Red<br>9 = Green<br>10 = Blue</p> |
| Adjustment Value | Float   | -X to decrement the current value or Y to increment the current value.                                                                                                                                         |
| USK              | Integer | One-based index of the Upstream Keyer. Default is 1.                                                                                                                                                           |
| M/E              | Integer | One-based index of the Mix Effect Bus. Default is 1.                                                                                                                                                           |