Seems like all CSS properties for transitions ( https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Transitions/Using_CSS_transitions ) are ignored in UI Widgets
Ah, GameFace has a problem with using the
transition shorthand, try using the expanded syntax:
Does not work too, unfortunately. Though “animation-duration” and “animation-name” eventually worked for the required purpose.
Basically you can do anything with animation, which could be done by transitions (I think), though it might require more code and also it takes some time to figure out that transitions do not work and it’s not caused by CSS mistake in widget (I eventually checked same CSS in Chrome and it worked fine). I think it should be at least documented.