Vector or raster graphic for UI elements? [closed]

1. What are the advantages of raster graphics over vector graphics?
2. When should designers utilize raster graphics?
3. What is the difference between vector graphics and raster graphics?

What are the advantages of raster graphics over vector graphics?

Raster images are best for digital photos and print materials. If your project requires scalable shapes and solid colors, vector is the best choice, but if your project requires complex color blends, raster is the preferred format.

When should designers utilize raster graphics?

Digital photography or when creating images because vector images have limited colour shading and depth variation, whereas raster graphics can go up to 16 million colours. With many images on the web still falling under the 72-100 dpi (dots per inch) range, raster images may look better than vector ones.

What is the difference between vector graphics and raster graphics?

An easy way to tell if an image is raster or vector is to increase its size. If the image becomes blurred or pixelated, it's most likely a raster file. With vector image files, resolution is not an issue. You can resize, rescale, and reshape vectors infinitely without losing any image quality.