The Trevaylor logo and the wireframes on the banner were created using OmniGraffle with stencils provided by Chris Heath.
The devices are based on the principles of 'dynamic symmetry', meaning there is a strict geometric relationship between every line, point and curve. The system uses dynamic rectangles, including root rectangles based on ratios such as √2, √3, √5, the golden ratio (φ = 1.618...), its square root (√φ = 1.272...), and its square (φ2 = 2.618....), and the silver ratio (δs = 2.414...). It is basically a way of devising ratios in order to create shapes that appear to have balance.
The use of it here has nothing to do with magic numbers or cracking the Da Vinci code. It is partly an aesthetic choice, and may also be seen as attempting to marry art and science, in the same way that in our work we try to bridge the gap between the 'soft' development discourse and the 'hard' financial reality, but let's not get carried away...
If you get the chance, visit the Cult of Beauty exhibition at the Victoria and Albert museum in London. You will start seeing golden spirals and infinite root-5 progressions all over the place. The pre-Raphaelites were all about beauty, but they were also very rigid about composition. For instance, feast your eyes on 'The Golden Stairs' by Edward Burne-Jones.
