As of now, Twitter has not officially announced any changes to the size of Twitter headers for 2023. However, it is safe to assume that the dimensions will likely remain the same as they have been in recent years, which are 1500 x 500 pixels.

The terms "Twitter header" and "Twitter banner" are often used interchangeably, and both refer to the graphic that appears at the top of a user's Twitter profile page. However, technically speaking, the correct term is "Twitter header". This is because the word "banner" typically refers to a long, narrow piece of cloth or paper used for decoration or display. The term "header" is more commonly used in the context of websites and digital design, to refer to the graphic at the top of a page.

To make your own Twitter header, you can use graphic design software or online tools like CapCut. Here are some basic steps: 1. Determine the dimensions: Twitter headers are 1500 x 500 pixels. 2. Choose a background image or color. 3. Add text and other elements, such as your logo or images. 4. Customize the design with various fonts, colors, and effects. 5. Export the image as a high-quality file. 6. Upload the image to your Twitter profile by selecting "Edit Profile" and "Change Header Photo".

The recommended image size for Twitter depends on the type of image you are posting. For a single image tweet, the recommended size is 1024 x 512 pixels, with a maximum file size of 5 MB. For a Twitter card image, which is a larger image that appears with a tweet that has a link, the recommended size is 1200 x 628 pixels. When it comes to profile images, the recommended size for a profile picture is 400 x 400 pixels, while the recommended size for a header image is 1500 x 500 pixels.