Could you add Natron (www.natron.fr) as compatible software on the corresponding page on http://opencolorio.org/CompatibleSoftware.html ?
It is made compatible in a very similar way to how Nuke nodes do it.
The following nodes are available: OCIOCDLTransform, OCIOColorSpace, OCIODisplay, OCIOFileTransform, OCIOLookTransform, OCIOLogConvert
All OCIO configs are bundled in Natron (Aces 1.0, Blender, Nuke-default,Spi-Anim, Spi-Vfx). They can be selected in the Preferences of the application, and the Blender profile is set as default.
