The Opacity Modifier change the opacity (alpha) value of the stroke points.
The alpha value in Grease Pencil is stored per-point, The modifier can alter these values to go from totally transparent points to totally opaque points.
Controls the Opacity (Alpha) value of the stroke points.
A value of 1.0 respect the original alpha value of the points, a shift less than 1.0 make the points more transparent than originally, and a shift greater than 1.0 make the points more opaque than originally.
Sets value to 2.0 makes the points alpha fully opaque.
- Create Materials
When applied, the modifier will create a new material that will keep the color transformation.
The color transformation will be applied on the stroke and/or the fill color.
Both, Stroke, Fill