UI.11 Ribbon and footer: group flyouts, inline controls in a group, contextual tabs that light up; a status bar with toggles and a customize menu

Ribbons: our ribbon block draws each group's large tools and stacked small tools with the group's name under it; the reference adds a ▾ on the group title that opens the rest of the group (tool rows have this: details.tr-more), inline controls inside a group (the layer drop-down, colour / linetype / lineweight pickers "ByLayer" in the Properties group, a measure field), and a contextual tab that appears lit in the app's colour when something is selected (ours exists, A.contextTab, but looks like the others). Change: ribbon groups take "more" (the rest of the group under ▾) and "slots" (the adapter's slot controls moved in, as the info box does), large / small per tool from format v2 (UI.6), a contextual tab coloured by the app's layer and a one-line label of what is selected, keyboard access by Alt. Footer bars: the status bar today holds the app's status line, the selection count and the layout's name; the reference's holds the Model / Layout tabs, mode toggles (grid, snap, ortho, polar, object snap, tracking, lineweight, transparency, selection cycling, annotation scale 1:1, workspace, isolate) and a gear that chooses which toggles show. Change: statusbar takes "toggles" (registry commands with pressed state, drawn as icon buttons lit when on, the app says which it has through pressed()), a scale slot, and a customize menu (the gear) that ticks toggles on and off, saved in the person's layout. Model / Layout tabs are viewtabs mode "all" at view-bottom, with a "+" when the app can add a view (CadCraft paper space, BimCraft sheets). Owner addition the same day: a ribbon group has no collapse control; collapsing belongs to palettes and floating panels (UI.26), and a unit dropped into a ribbon zone opens. The ribbon as a whole still minimizes to its tab strip (DF.27), from the tab strip, never per group.