Concept:
- The Vishnudharmottara Purana contains the well-known "Chitrasutra" section, the earliest surviving Indian treatise on the theory of painting, covering colours, proportions and technique.
Step 1: Recall which Purana is cited in art history for painting theory.
Among the Puranas, the Vishnudharmottara Purana is specifically remembered for its Chitrasutra portion, the foundational Indian text on the art of painting.
Step 2: Recall what this section discusses about colour.
The Chitrasutra lays out a classification of tones and shades used in traditional painting, including a description of five white tones used for shading and highlighting figures.
Step 3: Eliminate the other options.
The Markandeya, Varaha and Skanda Puranas deal with other mythological and religious subject matter and are not associated with this classification of painting tones.
Final Answer: Vishnudharmottara (option 3)