# How to change color for a block of texts?

I am editing a LaTeX paper with Emacs. Sometimes, just for myself, I want to make a block of texts less obvious (or less important to see). Instead of totally hide them, I still want them to be there. So I am wondering if there is an easy way to embed them in something so that it changes color (to grey for instance) and looks less important.

Could anyone help?

By the way, besides changing color, do you have other suggestions for this kind of need (making easily a block of texts look less important)?

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