In photography studies the main source for creating and Working with light and light to change mood or other dynamics such as artificial light exercise light painting ect other fundamental ideas are used to manipulate lighting in an image....
First off, this isn't really a yes or no question, this is an opinion.
My opinion is that photos that have been altered in any way should be marked. These days you never know what a person will do to say, get a job, advance a political agenda, or ruin the reputation of another person. The public has the right to the truth. Therefore, altered pictures should be marked or labeled in a way that differentiates them from others.
Always start with a capital letter. End with a period. Never start with (and, because).
The answer is a the material of a work of art