Unit B (creator ruling 2026-11-12). Pressing Record / Go Live now changes the bar: the REC/ON-AIR pill
pair becomes two labelled switches with glyphs (the YouTube mark, the record dot), under an "Output"
label and beside "One output at a time". Build world shows nothing but its own segment.
Two things this exposed that were not cosmetic:
- **Local MP4 was not actually the default.** Both pills started unarmed, so the stage opened with no
output selected; the old screen got away with it because the primary button inferred "record" from
"nothing armed". RecordPillOn now starts true, which is what "pos = ON (default)" means in code.
- **The stage gates the whole idle cluster, not just the switch.** Gating only the switch left the start
button visible in the Build world — a Start with no output chosen. ShowOutputStage (output world, idle,
not recording) wraps the cluster, so a running session hides the stage too: its output cannot change.
Exclusivity stays in the view model (arming one drops the other); the XAML merely reflects it.
TopBarWorldTests pins the stage's visibility and the radio pair starting at Local MP4.
680 pass, 0 warnings. Next: unit C (output-dependent primary action, End labels).
Scope justification: Assets/starting-background.jpg is outside this unit — the creator's replacement art,
still awaiting their visual check.
Unit A of the top-bar redesign (creator ruling 2026-11-12). The standalone EDIT toggle is gone;
Build Scenes IS edit mode, so "which world am I in?" and "can I edit?" cannot disagree any more.
BarWorld (ViewModels/MainViewModel.TopBar.cs) has two values, Build and Output. Build ships
highlighted at launch and sets EditingActive on; choosing Record / Go Live turns it off. Clicking the
already-highlighted half is deliberately not a no-op: it re-enters that world, which is the only way
back to the layers during a session now that the EDIT button is gone (unit 1 made that legal).
WorldSegmentButton (Themes/Controls.xaml) is a Button, not a ToggleButton, and each half passes its
own flag through Tag to one shared DataTrigger — a ToggleButton would fight the view model and, with a
one-way IsChecked, clear its own binding on first click.
UiShellTests updated where it guarded the old EDIT markup (it now guards the segment). TopBarWorldTests
pins launch state, both transitions, and the re-enter case.
679 pass, 0 warnings. Next: unit B (output switch), unit C (output-dependent action + End labels).
Scope justification: Assets/starting-background.jpg is outside this unit — the creator's replacement
art, still awaiting their visual check.
gramps