Originally used to suggest painters practiced an art of grace and sophistication, was later characterized as a decadent reaction against the order and balance of the High Renaissance.

Italian Renaissance  

Explanation:

The term Italian Renaissance used to describe the changes that began to emerge in Italy in a new way that changed man perspective seeing the world differently. Italian renaissance term used to describe painters who were accomplishing art in a  new style with techniques that were unknown to anyone before. The painting which the famous masters produced depicting a gracefulness and sophistication. The era categorized based on the technique that was emerging in different countries and city-states.

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c. the branch of philosophy that deals with beauty and how it is expressed and appreciated