Patent ID: 8420297

Claim:
A method of providing a lithographic printing member comprising: A) imagewise exposing a lithographic printing precursor comprising a substrate and an imageable layer to provide an imaged precursor having exposed and non-exposed regions in the imageable layer, B) contacting the imaged precursor with a coloration solution containing a photochromic compound, and C) exposing the imaged precursor after step B to ultraviolet (UV) light to effect color change of the photochromic compound attached to the imageable layer, wherein the photochromic compound is represented by the following Structure (I): wherein X is oxygen, sulfur, sulfone, or a substituted or unsubstituted nitrogen, Y is oxygen or a substituted or unsubstituted carbon, R 1 is an electron donating group, and R 2 is hydrogen or any other substituent.