Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Refs #3914. Title is explanatory in this case.
Also includes assertions for autofilling background in other widgets; autofill background means that the widget will paint the background parts that is not in the widget itself, for, e.g. Label, Box, and ImageView, as opposed to TextInput where the bacgkround painted is of the widget itself.
Also removes old imageview.png file, since it's superseded by each platform's imageview image.
PR Checklist: