Answer

It appears that the search results are related to logos and visualizations of sports teams, but none of them directly answer the question about creating a shape in PNG format.

However, I can provide some general information on anti-aliasing, which is relevant to image creation. Anti-aliasing is a technique used to smooth out the edges of shapes in images, especially when they are composed of non-straight geometrical elements.

According to the search result "anti aliasing - Why do non straight geometrical shapes appear …", non-straight geometrical shapes can appear pixelated or blurry due to the way pixels are arranged. To avoid this issue, you can use anti-aliasing techniques when creating images in PNG format.

If you're looking for a specific example of how to create a shape in PNG format, I couldn't find any direct matches in the search results. However, you can try using image editing software like Adobe Photoshop or GIMP to create and edit your image.

Note: The search index lacks direct matches for the user's question about creating a shape in PNG format.