Hi Damian,
Thanks for your suggestion.
We support TIFF format via some 3rd part library, I guess that’s why we cannot support some special type of TIFF, because which is also not be supported by the 3rd part library. But I have let our developer know your requirement, I think they will do more research or have a plan on that.
And some APIs like ColorMappings maybe useful for your scenario, one of our user who render the colorful raster layer by this API when we don’t support directly read its inner color information. please refer this link as below: Raster image Coloring
Wish that’s helpful.
Regards,
Don