My layers panel has one layer that says "(Pixel)"; however, when I attempt to enter the "Develop" persona, a window pops up with the instruction to "please select an RGB pixel layer before entering the Develop persona." Now what?

[Jon Streeter]

I get the instruction to select an RGB pixel layer before entering the Develop persona.  A tech-support answer says to check the layers panel, and if the parentheses don't contain "pixel" you have to rasterize the image; however, my layers panel has only one layer, and it does say "(Pixel)." I vaguely remember being told to check for what kind of document the image was by clicking on the Document tab, but I don't see anything that seems appropriate to my situation.

[carl123]

16 minutes ago, Jon Streeter said:

I get the instruction to select an RGB pixel layer

Your document is Gray/8 not RGB

[Joachim_L]

2 hours ago, carl123 said:

Your document is Gray/8 not RGB

Apart from that, why do you want to go to the Develop Persona? Is there any feature I do not know of, which is only in this Persona? I think the Develop Persona is only meant for "developing" RAW files, not for files that were "developed" previously?

[R C-R]

4 hours ago, Joachim_L said:

I think the Develop Persona is only meant for "developing" RAW files, not for files that were "developed" previously?

It can be used with any RGB pixel layer. For example, its Lens panel might be used to manually add or remove pincushion distortion, spin the layer plane horizontally or vertically, etc.

Some things closely duplicate what can be done in other personas; others do not.

[Jon Streeter]

Thank you, Joachim and R C-R.  I'll check it out.