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I'm seeing mode-line-emphasis and mode-line-inactive used in color themes to change the mode-line face value for used and unused buffers.

describe-function and describe-variable don't have an entry for mode-line-emphasis or mode-line-inactive

Where can I find information on this?

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They are faces.

See the Emacs manual, node Faces. See node Faces in the Elisp manual to learn about how to investigate and manipulate faces using Emacs Lisp.

Command list-faces-display shows you the currently defined faces. You can use command describe-face to see a description of a given face, and you can use command customize-face to change the appearance of a face.

  • describe-face and list-faces-display were the functions I was looking for, thanks! – sp00kyb00g13 Aug 11 '17 at 20:36

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