These seven SVG/PNG pairs isolate explicit rx="auto", ry="auto", both values, and CSS automatic rectangle radii. An omitted counterpart also has initial value auto. Both automatic radii have used value zero: rectangles retain square corners and ellipses produce no geometry.
Every reference is the same independently specified 100x100 RGBA image: transparent pixels except an opaque red rectangle covering [20,60) x [20,60). The PNG bytes are copied without rerendering or regenerating an oracle from the implementation under test. The ellipse cases include that rectangle as a visible control and must add no blue pixels.
The assertions follow SVG2 rx, ry, rectangles, and ellipses. These cases do not depend on the draft's conflicting rectangle percentage-radius rules. The manifest's existing requirement IDs retain their original baseline identifiers for compatibility.
1.15.0 