right / r (Facing right)up / u (Facing up)left / l (Facing left)down / d (Facing down)a0 (Animation frame 0)a1 (Animation frame 1)a2 (Animation frame 2)a3 (Animation frame 3)sleep / stileright / tr (Connects right)tileup / tu (Connects up)tileleft / tl (Connects left)tiledown / td (Connects down)raw variant number (e.g. 8, 17, 31)maroon, red, orange, yellow, lime, green, cyan, blue, purple, pink, rosy, grey, gray, black, silver, white, brown (Color names)palette_x/palette_y (Color palette index, e.g. 0/3)#hex_code (Color hex code, e.g. #f055ee)inactive / in (Inactive text color)hide (It's a mystery)meta / m (+1 meta layer)mX (A specific meta depth, e.g. m1, m3)nothing (Do nothing)mask (Mask with this sprite outline)cut (Cut this sprite outline)face (Pick out the details in a sprite)blank (Pick out the shape of the sprite)noun (Noun-style text)letter / let (Letter-style text)property / prop (Property-style text)NOTE: Direction, animation, sleep, and tiling variants also have a "soft" version (suffixes by "s" or "soft").
NOTE: Some variants may not work for certain tiles.