Colour is an essential component to any decorating scheme. It grounds a look, providing unity and cohesion. But it also energises us emotionally - having the power to feed the soul and make our hearts soar. With so much riding on it, it's the one area most people justifiably feel a bit nervous about when tackling a decorating project. There's really no need to worry though. Tricia Guild founder of iconic Designers Guild, knows a thing or two about how to use colour to its full effect.