% Special variables
#@ @ @#
whatever

% Chardimen variables
d h w

% Position variables
x y z

% Output variables
aspect_ratio localfont mag mode screen_cols screen_rows

% Other variables
currentpen currentpicture currenttransform
extra_beginchar extra_endchar extra_setup

----------------------------------------------------

[
	["comment", "% Special variables"],
	["variable", "#@"], ["variable", "@"], ["variable", "@#"],
	["variable", "whatever"],

	["comment", "% Chardimen variables"],
	["variable", "d"], ["variable", "h"], ["variable", "w"],

	["comment", "% Position variables"],
	["variable", "x"], ["variable", "y"], ["variable", "z"],

	["comment", "% Output variables"],

	["variable", "aspect_ratio"],
	["variable", "localfont"],
	["variable", "mag"],
	["variable", "mode"],
	["variable", "screen_cols"],
	["variable", "screen_rows"],

	["comment", "% Other variables"],

	["variable", "currentpen"],
	["variable", "currentpicture"],
	["variable", "currenttransform"],

	["variable", "extra_beginchar"],
	["variable", "extra_endchar"],
	["variable", "extra_setup"]
]

----------------------------------------------------

Checks for important variables.