I just discovered something which is worth bringing up: The default for css flex layouts is align-content: stretch This adds space between elements if the total height (or width) of the elements are less than the parent. I don’t think that’s an appropriate default for a tile layout. The layout should be packed from the top left and only add space if there is padding/margins in the itemRenderers.
I believe the correct default css is align-content: flex-start which has the behavior that I would expect from a tile layout. Of course, it might be interesting to have a tile layout which offers different spacing options. That could be alternate layouts, or even beads attached to the layout beads. I fixed this issue in my app by just adding some align-content: flex-start css to my TileLayout component. This works because I don’t need swf rendering, but I think it’s something that should be addressed in the TileLayout. Let me check… I just (fixed and) ran ContainerTest, and the swf behavior is in fact different than the HTML behavior. I think we can classify this as a bug. I’m committing this change. FWIW, there’s lots of other differences between the swf output and the JS output in ContainerTest. It’s probably worth looking into the rest of those issues as well… Harbs
