trib

This was added to the API in version 0.90.

trib(x1, y1, x2, y2, x3, y3, color)

• x1, y1 : the coordinates of the first vertex
• x2, y2 : the coordinates of the second vertex
• x3, y3 : the coordinates of the third vertex
• color: the index of the desired color in the current palette

This function draws a triangle with color, using the supplied vertices. But unlike tri, trib only draws an outline (border).