Module layout 

Round 2 (docs/round-2-contract.md §7): the shared layout NUMBERS (catalog/layout.json, generated as LAYOUT_CONSTANT_NAMES/VALUES): one place for the core and every painter.

Constants

FIELD_INTRINSIC_WIDTH

The max-content width of a text field (px).

MEDIA_ASPECT_RATIO

Width / height of an Image without aspectRatio or a height; Video’s default.

MEDIA_INTRINSIC_WIDTH

The max-content width of an Image/Video without a width (px).

PANEL_MIN

A panel’s min (percent) when unset.

PENDING_DELAY_MS

EXP-1259: how long a loading Button waits before it shows its pending state (ms).

RESIZE_HANDLE_HIT

A Resizable handle’s hit area across its hairline (px).

RESIZE_STEP

Percentage points per arrow key on a Resizable handle.

SEARCH_LIST_FADE

The bottom fade over a SearchList’s rows while more sit below (px).

SKELETON_OPACITY_HIGH

SKELETON_OPACITY_LOW

SKELETON_PULSE_MS

The Skeleton’s ONE opacity pulse (ms, low → high → low, ease-in-out).

SKELETON_REDUCED_OPACITY

The Skeleton’s static opacity under reduce motion.

TABLE_COLUMN_MIN

EXP-1548: the narrowest a Table column without a width gets (px); a table whose columns need more than its box scrolls horizontally.

TREE_GUIDE_BRIDGE

How far a TreeGuides vertical overshoots its row’s TOP to bridge a Section divider (px; paint only, never layout).

TREE_GUIDE_COLUMN

One TreeGuides gutter column (px).

TREE_GUIDE_RADIUS

The radius of a TreeGuides elbow’s corner (px).

WINDOW_OVERSCAN

Items rendered beyond each viewport edge.

WINDOW_THRESHOLD

Items past which List and Table window.

Functions

layout_constant

A layout constant by name (windowThreshold, mediaAspectRatio, …).