I have a digital signage app that displays flight information. In shows data in rows like you see at pretty much every airport in the world. Text is white on black, row background alternates essentially gray/black.
Currently when changes occur the data is simply updated on the next refresh (seconds). It might be nice to indicate that "something has changed" or "this element has changed" recently. A previous version of did this by changing numbers and text to a yellow color.
Is yellow text the most appropriate for "this has changed, but it's not necessarily a bad thing"?
I first considered animation but I think the consensus is that it would be distracting. Also to be considered is that people will not be constantly staring at the screen and an animated change might not be noticed.