Why are there three sizes of background tiles on Coolnotions.com?
Initially, I went with one size, the regular 150×150 tiles in the “free webpage backgrounds” section. 150×150 was a somewhat arbitrary choice on my part. It seemed about right in terms of striking a balance between being able to make something that looked decent and keeping the file size within reasonable limits. Later, in order to allow for larger and/or fancier tiles, I added the 256×256 “deluxe” size. Most recently, I added the smaller 64×64 tiles to allow for more compact files in cases where the larger sizes really were not necessary. There is actually a fourth size in that some of the early files in the 150×150 section are actually 128×128. This was accidental. I don’t intend to create any more in that size, but I don’t see any great reason to go back and change the ones that are there.
