Create a new underline color attribute. This attribute modifies the color of underlines. If not set, underlines will use the foreground color.
the red value (ranging from 0 to 65535)
the green value
the blue value
the newly allocated PangoAttribute, which should be freed with pango_attribute_destroy().
1.8
Create a new underline color attribute. This attribute modifies the color of underlines. If not set, underlines will use the foreground color.