Nodes of different colours represent the following:
Solid arrows point from a procedure to one which it calls. Dashed
arrows point from an interface to procedures which implement that interface.
This could include the module procedures in a generic interface or the
implementation in a submodule of an interface in a parent module.
Source Code
elemental function subtract_colors(c1,c2)result(c)type(rgb_color),intent(in)::c1,c2type(rgb_color)::cc%r=c1%r-c2%rc%g=c1%g-c2%gc%b=c1%b-c2%bend function subtract_colors