Use color gradation editor

The spot color gradation editor will modify the brightness of the gradients for a spot color.

Note: If a spot color has a specialty color component in it, both the process colors and specialty color component will be affected by the gradation curve.

In Spot Pro, select a spot color and click the Edit icon ().
Select the Gradation tab.
In the Input and Output table, type a gradient between 1 and 99.
The values in the table represent a percentage of the color tint. The values 0 (zero) and 100 cannot be modified.

The values are applied to the primary process colors and specialty colors and are shown on the tonal curve.

Note: You can have a maximum of up to 15 values including 0 (zero) and 100. Add a row with the “+” icon. After the fifteenth row is added, the “+” icon is unavailable.
To modify a gradation point along the curve, drag the point upward (to add color), or downward (to subtract color). You can also type the required coordinates directly in the table.
To delete a gradient, select a row in the table and press Delete key.
To reset the gradation curve, click the Reset icon () to revert to the original values of 0 (zero) and 100.