Reference nvgLinearGradient

Creates and returns a linear gradient. Parameters (sx,sy)-(ex,ey) specify the start and end coordinates of the linear gradient, icol specifies the start color and ocol the end color

function nvgLinearGradient(Ctx: PNVGcontext; SX, SY, EX, EY: Single; ICol, OCol: TNVGcolor): TNVGpaint;