digipak conventions

We have found some of the basic conventions of digipacks such as:
the digipak must be similar to the band, if the band is alternative and a bit strange then the digipak needs to represent this.
Sometimes thy don't always show the band on the digipak just have pictures and colours that represent the band and show off the band.
The text is sometimes written in an unusual font also representing the band.
As well as this, the digipak doesn't always have a title and only has the band's name.