Just a little ceramic information to share as a potter. Vitrified simply means the clay has become glass like by being fired to its proper maturing temperature. Usually ceramic tile means it is a lower temperature clay like earthenware or terra cotta. Porcelain is fired to the highest temperature and is more vitrified if you will. This usually means it is less porous to to absorb water and harder. Low fired ceramics with glazes much darker or lighter than the clay body will show chips easier. Rectified has to do with making the edges precise enough to fit smoothly together for less grout lines. So porcelain cost more to produce but it is more sturdy. All clay tiles should be vitrified.

This is the kitchen plan

We are designing our apartment in the tropics that has a contemporary "safari" look with dark brown teak furniture and a beautiful open balcony loaded with tropical plants.. We have a cream marble floor provided by the landlord... And have selected a beige "stone finish" ceramic tile for the bedrooms... And an Oak dark wood floor for the master bedroom. What would be the best selection of wall paints you can recommend? We were contemplating a shade of grey as egg white and ivory are rather common here. Any thoughts...? Thanks!

RAK is also a well known brand for tiles. Kajaria, Somany, Nitco, Johnson, Marbito, RAK Ceramics, Asian Granito are good ones. Kajaria is the market leader.