How to change Emacs Muse plain text color?

[Water Lin]

I am using M-x customize-group RET muse-colors RET to change the color
setting of my Emacs Muse. I can change head level 1 & 2 & 3 and
something else.

But I just don't know how to change the plain text color. Right now my
plain text color is white and I want to change it to yellow. so I can
protect my eyes.

Thanks

Water Lin

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Email: WaterLin@ymail.com