LongCatIsLooong

Started working on adding more test, @Hixie by proxy you mean the `PortalOverlay` widget right?

> (It'd be interesting to see if there was a way to implement this so that Overlay and _Theatre itself was agnostic about all this, so that other people could...

Regarding `material`, I made some changes to how material computes the paint transform to each `InkFeature` so it stops throwing (but if the `InkFeature` extends outside of the `material` it'll...

I initially thought I could just put `addChild` in an `invokeLayoutCallback` to workaround the `_debugCanPerformMutations` assert but that didn't work. @Hixie yeah I'm planning to add that as a separate...

@Hixie @goderbauer do you think the following API would be expressive enough for specifying the z-index/paint order? ```dart // OverlayInfo renamed. You should not retain an `OverlayLocation` between rebuilds as...

Looking at the `OverlayEntry` usages in the framework that could potentially be ported to OverlayPortal, most of them are just some sort of prompts that show at the top of...

Consider replacing `Container` with `ColoredBox`. What happened here is since the color goes from `null` to a non-null color, the `Container` widget changes the tree structure (and you did not...

@Hixie in a vertical `RenderFlex` with `VerticalDirection.up`, which child's baseline should be used? The [documentation of `computeDistanceToActualBaseline`](https://main-api.flutter.dev/flutter/rendering/RenderBox/computeDistanceToActualBaseline.html) says it > Returns the distance from the y-coordinate of the position of...

Ah so if I have a column with `VerticalDirection.up`, the expected behavior is to use the bottom-most child with a baseline? > for example consider a stack Stacks do use...

> in fact that's often the wrong child There doesn't seem to be a fast & easy remedy for that besides writing a custom RenderObject? Does it sound reasonable to...