debugDisableOpacityLayers top-level property Null safety
Setting to true will cause all opacity effects from the layer tree to be ignored.
An optimization to not paint the child at all when opacity is 0 will still remain.
Can be used to check whether excessive use of opacity effects is affecting performance.
This will not reduce the number of Layer objects created; the compositing strategy is unaffected. It merely causes the opacity layers to be skipped when building the scene.
bool debugDisableOpacityLayers = false;