def full_rgb_to_hex_string(full_rgba):
    """Return '#XXXXXX' formated string representing color.

    Parameters
    ==========
    full_rgba (sequence of integers)
        integers are in the range(256) and represent the
        values of the red, green and blue channel of a
        color; a fourth integer may also be present,
        representing the value for the color's alpha
        channel.
    """
    return (
        ### start string with a '#' character
        "#"
        ### then add a string obtained by converting each
        ### integer from the full rgba color into a custom
        ### hexadecimal representation
        + "".join(int_to_custom_hex(value) for value in full_rgba)
    )
Return '#XXXXXX' formated string representing color.

    Parameters
    ==========
    full_rgba (sequence of integers)
        integers are in the range(256) and represent the
        values of the red, green and blue channel of a
        color; a fourth integer may also be present,
        representing the value for the color's alpha
        channel.
    
nodezator/ourstdlibs/color/conversion.py