Hi
Would it not be a good idea to merge the "play" and "pause" button in foobar? So that "play" is visible if a song is paused, and "pause" is visible if a song is playing?
That is more logical than the gui today + it would make the gui a little bit cleaner.
You're free to replace the buttons with one that maps to "Playback/Play or pause" instead (the command is already implemented in foobar2000, although it's hidden by default).
Don't know if you can make the icon switch accordingly, though.
No, because they have two different functions. If you play a song for 30 seconds and clic play again it will start from begin, if you pause/play it will start from where it is. I like this way better but you are free to change it like yanni described.
You can both add custom keyboard shortcut to "play/pause" function (Settings -> Keyboard shortcuts) aswell as customize buttons and add custom button for "play/pause" function (rightclick on buttons field on your interface and choose ""Customize") . You can even give special icon (loaded from .ico file) to your new "play/pause " button.