v0.9.0

[0.9.0] - 2026-07-13

Added

• wpf_set_property / set-property (23rd tool) — live-edit any dependency property
  on an element at runtime, to test whether a planned UI change is effective without a
  rebuild. The string value is converted to the property's type via its TypeConverter
  (covers Thickness, Brush, Visibility, GridLength, Color, enums, double, ...);
  {null} sets null. Returns the coerced value read back and what previously held the
  property (Binding / Local / Unset). Read-only properties are rejected with a clear
  error.
• wpf_revert_property / revert-property (24th tool) — undo live edits: the most
  recent one, a filtered one (element_handle / property_name), or all=true for the
  whole experiment. Restores the exact prior state — including a binding that was
  overwritten (not just the last value), a local value, or clears to style/inherited/default
  when there was none. Backed by a per-session undo stack.

Notes

• Setting a data-bound property replaces the binding with a local value (usually what you
  want for a quick test); wpf_revert_property puts the binding back. Verified live against
  the sample app: Margin and Background edits are visible in a screenshot, and
  overwriting a bound Text reports previousSource: "Binding" with the binding restored on
  revert.
• Pairs with wpf_capture_screenshot to see the effect. The planned wpf_diff (roadmap)
  will add automatic before/after measurement.