Blogger Template Designer is a way to easily customize the look of blog. You can select a variety of templates, images, colors, and column layouts to make blog an expression of you. To get to the Template Designer, go to Templet
To get started with Blogger Template Designer, select a template for your blog from one of the professionally designed templates that are available. Each template appears as a large thumbnail that when clicked will show different variations on the template below that you can select by clicking on them. Note that clicking a new template will erase any customizations you’ve made on a previous template. Once you’ve chosen a template, you can continue customizing the look of your blog.
No matter what template you are previewing in Template Designer, you can always see what is currently live on your blog by looking at the Live on Blog thumbnail in the Template Designer control panel. You can also click on it to reset the template in the Template Designer to the live version of your blog.