How to customize the ROM?

[babyPIG]

hi, i want to customize the ROM of opal.
for example, i want to remove mobile office, del the preset themes .etc...
how can i find the documents that can help me ?
or, maybe, you someone already have some ROMs i need?
thanks~~

[babyPIG]

where r the experts?
we viva users are so eager for a better ROM than the official one~~

[A.J]

yea i agree with you man we deserve to get better room than this offical one lol :D