Selecting a Scoreboard layer now shows its settings, using the app's own widgets only:
- eight fact checkboxes (subscribers, watch hours, Super Chats, new members, milestones, last member,
last Super Chat, last gift)
- text colour and plate colour via YtComboBox over BorderColorPalette (the app's one palette —
TASK 63's rule: a picker IS the app's drop-down, never a hand-built menu)
- plate on/off, plate opacity, text size 14-24
Every change pushes through the presenter (SetStyle/SetTiles) and repaints the strip, so the preview
and the output follow immediately. One look per layout, stored on the view-model: the scoreboard is a
single billboard, not eight independent widgets.
Guard: ScoreboardPropertiesTests asserts the panel is gated on SelectedElement.IsScoreboard, binds
all eight facts and the four look controls, uses YtComboBox/YtCheckBox only, and that the VM surface
exists for each name (a typo would otherwise bind to nothing in silence).
gramps
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