Re: [Gimp-developer] Three questions about opening an image and converting it to linear light RGB

Does this mean that in float bitdepths a pixel in a layer could have
negative RGBA values?
That could break compositing badly if those values are not clipped (and
clipping those out-of-bound values would destroy the original gamut,
defeating the purpose of the unbounded colorspace transform).

Yes they can, all of the current composition modes will survive this,
though I think a couple
may still clip things internally. In general any GEGL operation that
takes a floating point
format needs allow values outside of [0.0, 1.0].

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