VertexColorMaterialPositionColors Property

Gets or sets the Color4 array that specifies the colors for each position of the object. When the values in this array are changed after the material has already been initialized, then the UpdatePositionColors method must be called to update the VertexColorsBuffer. By default, the colors are not alpha pre-multiplied. To use alpha pre-multiplied colors, set the IsPreMultipliedAlphaColor property to true.

public Color4[]? PositionColors { get; set; }