I'm creating a beamer and I'm looking after some effects I could include to make my work more attractive. Is there a way to make a flashy text ? I'm thinking about an alarm clock : you know when it rings the time appears, disapears, appears, disapears ect.
On the other hand, I've seen other effects such as a text which gradually disappear (effect of fading).
It appears pstricks may enable anyone to do something like that but would you have an exemple of code for both cases ?