Another great feature in Twenty Ten is the header uploader, which allows you to upload new and unique custom header graphics for your WordPress site. Twenty Ten comes preloaded with eight default header images. To install one, follow these steps:
On the Custom Header page, the settings for the header image feature appear.
Figure 1-5 shows the default header images.
Although the default header images are acceptable, you most likely will want something unique for your blog. The uploader allows you to choose a custom header image easily. Just follow these steps:
The Custom Header page loads in your browser window.
A window pops up asking you to select an image from your computer's hard drive.
Your image uploads to your Web server and the Crop Header Image page appears.
To resize and crop your image, drag one of the eight boxes located at the corners and the middle of each side of the image. You can also click within the image and move the entire image up or down to get the optimal placement and cropping effect that you want.
The Twenty Ten theme's default header size is 940 x 198 pixels. Generally, uploading a new header image already cropped in an image-editing program to that exact size is best. However, if your image is larger, you can use the built-in cropping feature to fit the image in the default space after you upload the header, as shown in Figure 1-7.
This loads the Custom Header page in the Dashboard and displays your new header image.
This saves the changes you made to the header image and publishes it to your site.