I changed mine as well. I've got it as:-
Red +24hrs
Green -24hrs
Yellow Timer
Blue AutoTimer (default anyhow I'm sure it was)
I weren't sure on what to do to change Ch+/- to page up/down (respectively)
Slightly off-topic but i'm wanting to add channel numbers when viewing graphical epg. So instead of it reading [picon] BBC One N West......, it reads [picon] 101 BBC One N West...... I couldn't see this being in the same file as coloured buttons.
EPGChannelNumbers.jpg