<itemvalue="It is safe to call [moveNext] after it has already returned `false`, but it must keep returning `false` and not have any other effect."/>
<itemvalue="Should be called before reading [current]. If the call to `moveNext` returns `true`, then [current] will contain the next element of the iteration until `moveNext` is called again. If the call returns `false`, there are no further elements and [current] should not be used any more."/>
<itemvalue="enable gizmos"/>
<itemvalue="Whether the raster cache should be told that this painting is likely to change in the next frame. This hint tells the compositor not to cache the layer containing this widget because the cache will not be used in the future. If this hint is not set, the compositor will apply its own heuristics to decide whether the layer is likely to be reused in the future. This flag can't be set to true if both [painter] and [foregroundPainter] are null because this flag will be ignored in such case."/>
<itemvalue="Whether the painting is complex enough to benefit from caching. The compositor contains a raster cache that holds bitmaps of layers in order to avoid the cost of repeatedly rendering those layers on each frame. If this flag is not set, then the compositor will apply its own heuristics to decide whether the layer containing this widget is complex enough to benefit from caching. This flag can't be set to true if both [painter] and [foregroundPainter] are null because this flag will be ignored in such case."/>
@ -69,8 +71,6 @@
<itemvalue="A filter operation to apply to a raster image. See also: [BackdropFilter], a widget that applies [ImageFilter] to its rendering. [ImageFiltered], a widget that applies [ImageFilter] to its children. [SceneBuilder.pushBackdropFilter], which is the low-level API for using this class as a backdrop filter. [SceneBuilder.pushImageFilter], which is the low-level API for using this class as a child layer filter."/>
<itemvalue="A description of a color filter to apply when drawing a shape or compositing a layer with a particular [Paint]. A color filter is a function that takes two colors, and outputs one color. When applied during compositing, it is independently applied to each pixel of the layer being drawn before the entire layer is merged with the destination. Instances of this class are used with [Paint.colorFilter] on [Paint] objects."/>
<itemvalue="immutable"/>
<itemvalue="Raw straight RGBA format. Unencoded bytes, in RGBA row-primary form with straight alpha, 8 bits per channel."/>
<itemvalue="PNG format. A loss-less compression format for images. This format is well suited for images with hard edges, such as screenshots or sprites, and images with text. Transparency is supported. The PNG format supports images up to 2,147,483,647 pixels in either dimension, though in practice available memory provides a more immediate limitation on maximum image size."/>