1b95001feb
assumed Continuing the pulse's cycle length, which I had called a structural limit of the format. It is, and now I can show it rather than assert it. Dumping past what I thought was the final keyframe found an EIGHTH block: fade 0x00ffffff at the same position, so the glow returns to fully transparent and the pulse is a closed cycle rather than a one-shot ramp. That is worth having on its own -- the port knows the animation ends where it starts. And the eighth block's time slot contains the four bytes "end ", the record's ASCII terminator. So the corpus's rule that a group's last block has no time of its own holds here in a second form: not the next group's element index, but the chunk terminator. The value does not exist. That goes into ui-rat-layout.md, because it generalises beyond this record. The measured 2.3 s would need a final step of about 33 units. I have written that number down explicitly labelled as fitted to the measurement rather than read from the file, so nobody later re-derives it as a decode. One thing I had half-assumed and can now rule out: the word at +0x004 is not a keyframe count. It reads 60 here with 8 keyframes and 30 in the loop records with 3. Unknown, and marked so.