[beaker52]

editorconfig only defines the following properties:

  charset
  indent_style
  indent_size
  tab_width
  end_of_line
  trim_trailing_whitespace
  insert_final_newline

These are all sensible things to enforce (with the exception of tab_width, which is actually a display preference). Subjectively, other things are mostly flexible.

[Maken]

There are more properties listed in the complete list (link is above the short list), mostly about parenthesis and braces. I guess they aren't listed in the main page because they are language-specific.