Function setpalentry 

pub unsafe extern "C" fn setpalentry(
    c: c_uchar,
    r: c_uchar,
    g: c_uchar,
    b: c_uchar,
)

\m65libsummary{setpalentry}{Set color entry for the maped-in palette} \m65libsyntax {void setpalentry(unsigned char c, unsigned char r, unsigned char g, unsigned char b)} \m65libparam {c}{The palette entry index (0-255)} \m65libparam {r}{The red component value} \m65libparam {g}{The green component value} \m65libparam {b}{The blue component value} \m65libremarks {Use setmapedmal to bank-in the palette to modify}