Help:Infobox Designing an infobox
It is a good idea to seek the opinions of other editors before embarking on a design of a new infobox or redesign of an existing one. Most requirements are already met by an existing infobox and most of the remainder can be met with a tweak. Unnecessary duplication leads to clutter and article divergence. Prototype your new design in your own user space. Once prototyped, propose the infobox changes to the appropriate WikiProject and gain consensus before deploying your new design in the template namespace.