View Source ExTDLib.Object.BackgroundFillGradient (ExTDLib v0.0.4)

Describes a gradient fill of a background.

NameTypeDescription
top_colornumberA top color of the background in the RGB24 format.
bottom_colornumberA bottom color of the background in the RGB24 format.
rotation_anglenumberClockwise rotation angle of the gradient, in degrees; 0-359. Must always be divisible by 45.

More details on telegram's documentation.