What are the recommended first-line treatments for adults with newly diagnosed vitiligo?

Recommended first-line treatments for adults with newly diagnosed vitiligo:

The provided UK guideline excerpts do not include specific recommendations for the treatment of vitiligo. The context and references focus primarily on psoriasis assessment and management, including topical treatments, phototherapy, and systemic therapies for psoriasis, but do not address vitiligo treatment.

Therefore, based on the given information, no direct first-line treatment recommendations for vitiligo can be extracted.