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Add support for landscape orientation.
Get rid of buttonCollection, which is never used for anything. Even it's purported use of removing color buttons from and old scrollView is impossible to reach and unnecessary - just remove all of the UIScrollView's subviews.
Don't wait around for buttons to be added to the scroll view.
Better support for rotating between portrait / landscape modes.
Add a localized strings file mapping the supported colors' hex strings to their names in a format appropriate to be used as an accessibilityLabel.
Give the color buttons accessibilityLabels.
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