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Jehan authored
This includes improvements on the out-of-gamut colored corner being shown for unbounded component types out of the [0; 1] range (with some small margin of error to avoid e.g. a -0.0000001 value to show as out-of-gamut). There are still improvements to be made on the color rendering. In particular, it still draws as CAIRO_FORMAT_RGB24 cairo surface. We should probably move to draw as CAIRO_FORMAT_RGBA128F eventually (more precision and even allowing to draw unbounded colors with a possible option, instead of always clipping). Also adding the libgimpwidgets API gimp_widget_get_render_space().
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