Decorative Technique for Adding Gold Leaf or Paint

This page is the CodyCross answer for the clue below from Train Travel, Group 718, Puzzle 3 (City Monorail).

Question is: Decorative Technique for Adding Gold Leaf or Paint

and the answer is: GILDING

Word Meaning:

GILDING — present participle and gerund of gild

Definitions from Wiktionary.