Styling buttons
One of the darker corners of the flat UI paradigm is the look of clickable elements, like that of buttons; there is no universally accepted way of styling them.
For example, the Modern UI style (previously called Metro, as seen in Windows 8) is very radical, with clickable elements that look mostly like flat-colored rectangles with little or no distinctive graphical features. Other vendors, such as Apple, use vibrant gradients; there is a trend of also adding rounded corners, especially in web design since CSS3 provides a special-case syntax for just that. Subtle shadows, while considered heresy by some, aren't unheard of either.
Kivy is flexible in this regard. The framework does not impose any restrictions on visuals and provides ...
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