Set color of a turtle's icon

setturtlecolor color
settc color

Sets the new color of turtle's icon. The initial icon's color is black: {0 0 0 100}. Setting the new value will cause the turtle's icon is repainted, with no changes in the opacity channel (alpha).
Color can be specified as a name, index in the current palette of colors or a list or array of color compunds: {r g b} or {r g b opacity}. The range of compoud values is from 0 (off) to 100 (full brightness), opacity values are from 0 (transparent) to 100 (opaque). Opacity will be merged with the opacity values present in the current icon.


print tc
settc "red
print tc

(also chenges in the turtle's icon color)

{0 0 0 100}
{100 0 0 100}

See also:

Table of Content