I	DIRECTIONS
K	palette
a	last_token
G	SPRITES

R	height
U	width

r	running
c	color
d	direction
p	px
q	py
h	history
g	growth_target
s	score
b	last_item_color
m	chain_item_count
n	chain_length
l	max_chain_length
fc	frame_parity
f	new_item
e	endgame

A	movement_delay

a	input_buffer
j	input_write_index
k	input_read_index

u	positions
v	position_index

o	grid

z	item_serial_number

ef	eligible_for_placement

r		i
p		dx
q		dy

rf	render

x		score_status
y		chain_status
p		row
q		cell

T	input_thread

y		key
i		new_direction
x		nx

lt	last_movement
i	d
w	next_action
i	next_cell
ct	current_time
t	dirty_pixels
w	need_to_place_item
i	pass
x	erase_x
y	erase_y

x	max_area
g	grade
y	max_items