v0.18.0

• Breaking: Add act.dragUntilVisible() now moves the target in the center of the viewport (one additional drag). parameter moveStep is now optional, default to half the scrollable size. The direction can be controlled with bool toStart.
• Fix: Restore support for integration_tests - don't generate the timeline HTML
• New: Add support for flutter test --platform chrome - don't generate the timeline HTML and screenshot paths
• New: Added warning when spot<GenericWidget>() can't find a widget because it is actually looking for GenericWidget<dynamic>
• Improvement: Moved timeline screenshots into build/timeline/<test_name>/screenshots/ for easier browser image resolution. Fixes issues with Firefox.
• Improvement: Improve error message of act.tap when multiple or no widgets are found
• Fix: existsAtLeastNTimes(0) now reports a correct error message

Changes for WidgetSelector

• Improved: .snapshotWidget(), .snapshotState(), .snapshotElement(), .snapshotRenderBox() and .snapshotRenderObject() now add a single consistent entry each to the timeline with consistent messages.

Changes for WidgetSnapshot

• New: discoveredRenderObject
• New: discoveredRenderObjects
• New: discoveredRenderBox
• New: discoveredRenderBoxes
• New: removeQuantityConstraints()

Changes for class Screenshot (big breaking update!)

• Fix screenshot filenames on windows (remove colons)
• New: width, height, pixelRatio, name
• New: readBytes(), readPngBytes(), readPngBytesSync() gives access to raw bytes
• Deprecated: file property. Still returns File but signature now returns dynamic for web support. Use createTempPngFile() or raw byte APIs instead
• New: createTempPngFile() writes the screenshot to a temporary file and returns the absolute file path
• New: List<ScreenshotAnnotation> annotations, addAnnotation(), removeAnnotation() each layer is now separately available
• New: flattenedImage() merges all layers into a single image