About each Persona
Here's an overview of the set of Personas available to you:
Photo Persona: The main Persona, hosting your core photo-editing tools including painting and retouch tools.
Liquify Persona: For distortion of image areas. Great for retouch warping and special warping effects.
Develop Persona: Processes your raw images with full control of image colour and tone.
Tone Mapping Persona: Applies tone mapping to your image, bringing out local contrast.
Export Persona: For exporting regions of your image to different file formats and image sizes. Layers, groups and objects can also be exported.