You can set general Eclipse preferences that affect all
editors and file types.
Setting colors and fonts
Use the Colors and Fonts preference
to set the default font for the COBOL, JCL, PL/I, and compare editors.
Setting content type associations
Use the Content Types preference page
to associate file extensions with language content types. You can
add and remove associated file extensions.
Setting parser styles
Use the Parser Styles preference to set syntax parsing
options for the COBOL Editor, JCL Editor, PL/I Editor, and System z LPEX Editor.