Typing in a 500-scene screenplay without lag

A 500-scene screenplay does not have to make typing slow. The Board and Script screens used to rebuild their layout on every keystroke, invisibly.

They now hold still until the Writer closes, then catch up in one pass. The test types into a 500-scene screenplay at 8.3 milliseconds a frame, which is fast enough that it is no longer the problem it was.

That release also fixed three smaller things. A card asserted something nobody asked it to assert. A character counter sat under a field that was only half full. A payoff was shown as fine when it landed before its setup, which is a claim the scene-crossing rules exist to keep honest.

All four are the same kind of mistake: a screen deciding on its own what was worth saying. A panel that updates when nothing has changed, a badge reporting a number nobody needs, a pass announcing success before it checks. None of them crashed anything.

In each case the fix was the same: the screen says something only when it has something to say.