Function gmsh_sys::gmshOptionSetColor

pub unsafe extern "C" fn gmshOptionSetColor(
    name: *const c_char, 
    r: c_int, 
    g: c_int, 
    b: c_int, 
    a: c_int, 
    ierr: *mut c_int
)

Set a color option to the RGBA value (r, g, b, a), where where r, g, b and a should be integers between 0 and 255. name is of the form "category.option" or "category[num].option". Available categories and options are listed in the Gmsh reference manual, with the "Color." middle string removed.