Determine whether color is out of its own space gamut.
This can only happen if the color space is unbounded and any of the color component is out of the `[0; 1]` range. A small error of margin is accepted, so that for instance a component at -0.0000001 is not making the whole color to be considered as out-of-gamut while it may just be computation imprecision.
| color |
a [class@Gegl.Color] |
|
whether the color is out of its own color space gamut. |