I would like to define a major mode for some class of documents, a few faces, and fontification rules that find fragments users would want colored and apply those faces. The user will be able to customize the faces to their liking.

As a use case, users could colour cells in a table as they wish. When they load the file again, the colours would persist.

How would a basic major-mode with specific faces that would colour cells in a table look like?

  • What is the question? Sep 19, 2022 at 20:49
  • Have included the question in the last sentence.
    – Dilna
    Sep 19, 2022 at 20:53


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