1.2.1

Fixed

• Unknown theme-spacing tokens (p-primary, m-foo, top-abc, gap-x-blue, ...) now silently drop instead of throwing ArgumentError: Invalid spacing multiplier: <token> inside build(), matching the "unknown className is dropped with a debug warning" contract other parsers already follow. Adds WindThemeData.tryGetSpacing(String); the padding, margin, position, and flex-gap parsers now use it (sizing already pre-validated with double.tryParse). getSpacing is unchanged for backward compatibility. (lib/src/theme/wind_theme_data.dart, lib/src/parser/parsers/padding_parser.dart, lib/src/parser/parsers/margin_parser.dart, lib/src/parser/parsers/position_parser.dart, lib/src/parser/parsers/flexbox_grid_parser.dart)
• WAnchor now hit-tests its whole bounds via HitTestBehavior.translucent. The inner GestureDetector used the default HitTestBehavior.deferToChild, so it only fired when a painted child sat under the exact tap point. An anchor wrapping transparent content (a settings row, a checkbox row, a link with padding) ignored taps that landed on its empty regions, including the element centre that automated drivers and centred pointer events target. It now behaves like WInput/WPopover, which already use whole-box hit-testing, so the full anchor rectangle is tappable. (lib/src/widgets/w_anchor.dart; covered by test/widgets/w_anchor_test.dart)
• WPopover no longer flickers open-then-closed on the first trigger tap on web, and its menu items now respond on the first open. A leftover focus-loss auto-close (_onFocusChange) dismissed the popover roughly 150ms after the opening click, when web transiently blurs the trigger, so it closed on the same gesture that opened it (and unmounted the overlay before a menu item's tap could resolve). The auto-close is removed; dismissal is now driven solely by an outside tap and programmatic close, matching the same fix already applied to WSelect. (lib/src/widgets/w_popover.dart)