Magento is the strongest ecommerce opensource now. Each day, there are many new Magento webiste are published. In this artilce, I please write my experiences so magento designers or magento developers can custom magento theme quickly.
The first: We need to design magento shop, normally we just need to design for 3 main pages: Home page, category page and product detail pages. The other pages will be based on default theme, modern them or blank themes, because the design of default, modern theme is very nice and very standard, so it is not necessary to change them, These changes here is just changes for color, button so this fit your design. If you are designer, you need to take a look at the magento demo first so understand magento themes, because if not you can design a product that is very difficult to implement into magento.
The second: We will implement design into magento. The first, please implement 3 pages from design phase. Then for the other pages You should custom theme base on one of 3 themes ( default , modern or blank theme). The selecting to what themes will based belong to your like.

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