v0.165.0

Minor Changes

• #1338 4ffa6e03 Thanks @tenphi! - Add accessible nested tree rows, expansion state, hierarchy-aware operations, cascading ItemTable selection, grouped DataTable headers for pivoted results, and intrinsic table sizing with isAutoHeight.

Patch Changes

• #1343 947bd472 Thanks @tenphi! - Make Board's collisionMode="swap" source-aware: cross-board drops now insert only at an empty anchor, downscale without moving destination widgets, and cancel invalid transfers.

• #1341 7a4b6778 Thanks @tenphi! - Update Tasty to 3.1.0. Colour-token opacity is now applied with CSS relative colour syntax instead of the token's channel components, so every #token.N value — #surface-text.04, #purple.10 and the rest — emits oklch(from var(--surface-text-color) l c h / .04). The colours are unchanged, #current.N still composes with the alpha it inherits, and the --*-color-rgb companion variables are untouched, so raw CSS that reads them directly (rgb(var(--primary-color-rgb) / .2) in GlobalStyles) keeps working. Tasty also now treats light-dark() and contrast-color() as colours, alongside color-mix() and color().

• #1337 4594454b Thanks @tenphi! - TextArea / CommandTextArea: autoSize no longer disturbs the page while typing, and a single line is one row again.

  • The height is now measured off-screen instead of on the live textarea. Measuring used to set height: auto on the real element, force a layout, then restore it — twice per keystroke. Any ancestor sharing the column re-laid out mid-keystroke, so in a chat layout the transcript's scroll viewport grew by the collapsed rows and its scroll offset moved; the browser's scroll anchoring undid that imperfectly, which reads as the whole conversation bouncing a pixel in the rhythm of typing. A textarea already grown past its rows minimum — the everyday state of a chat prompt — lost 40px of scroll offset per keystroke with anchoring out of the way.
  • Row counting is fixed. height: auto sizes a textarea from its rows attribute and the font's own metrics, and that height was being divided by CSS line-height to get a row count. Where the line height is tighter than the font's natural line box, one line of text counted as two rows, so an autoSize textarea with rows={1} rendered a row taller than its content. Row counting now rounds a measured content height that carries no such floor, which also stops a fractional line height (a zoomed page, a percentage preset) from adding a phantom row.