designParity

Renders the fixture and measures it against the design it was built from — a PNG named exactly like its golden would be, in designDir (<snapshots>/design/ unless viddik.designDir says otherwise). Never records: the reference is the designer's, and a run that could overwrite it with the render would turn "does the code match the design" into "does the code match itself".

Reports rather than judges. The result is returned, the render is written beside the reference as _ACTUAL.png and a red-mask _DIFF.png whenever a pixel differs, so the next step — a person or a tool deciding what to move — has both images and the number. Whether the number is a failure is dynamicTests's call, under viddik.designStrict.

The fixture's own @ViddikScreenshot(tolerancePercent) is not consulted: it budgets rendering noise between two runs of the same code, which is a different question from how far the code is from its design.