improve design [issue 30]
improve design [issue 30]

Bitfication/bitfication-front,tgautier/bitfication,Bitfication/bitfication-full,Bitfication/bitfication-full,Bitfication/bitfication-full,tgautier/bitfication,Bitfication/bitfication-full,Bitfication/bitfication-front,Bitfication/bitfication-front,Bitfication/bitfication-front