max / quasi

0.28.0: a row group says what it does when it runs out of room Task 111910aa, ruling wiki layout-room-and-fallback (Max 2026-08-18). Region::Band names goingson's .page-header in its own doc, and nothing named that a Band and a TabGroup's strip occupy one row. goingson asserted that adjacency in a stylesheet -- position: absolute, top 0, right 0 -- which is the one construction the description layer cannot audit. Out of flow the toolbar contributed no width to the row it shared, so nothing could collide with it and nothing prevented the collision: at 913 CSS pixels the help control clipped off the edge, at 700 the search field sat on the "Contacts" pill, at 560 the new contact button left the viewport and could not be reached at all. Slot::run is the missing sentence. Run carries the required Fallback and the members that share the row, ranked. across(fallback) takes the fallback as an argument and there is no form that omits one, so rule 2 is held by the signature; beside() asserts the row was declared, Row::part's precedent, so a member cannot be added to a row that never said what it does when it is tight. No sizes. The description says what the row holds and each renderer derives the minimum in its own units. Room is measured per render and never authored. A tab group's strip stays generated from its children's labels rather than becoming a node, so the case is described without a new Region member. What shares the strip's row is Run::members. Describing the strip in its own right is makeover-layout 978d24f8 and is not needed for this. Priority per member was already here: Ranked has carried one since 0.27.4, so Shed and Menu read what the vocabulary already said. The run is walked with the body in find, find_mut and feeds_into. A region that moved out of the pane and stopped being addressable would stop updating, which is a worse bug than the overlap the move fixes. Boxed for fed_by's reason: Node::Region holds a Slot by value. Breaking, so every consumer moves in this pass: MNW server, goingson and audiofiles take quasi 0.28, and the whole tree takes makeover-layout 0.29.