For icons, I always think that as long as the resolution of the source image is high enough, it will not be enough to narrow down the display, so why do I create a single *. the ICO file type is confusing. I know that one day I saw a different one. For the icons we get used to every day, they seem quite comfortable, but if you want to create an icon by yourself, you must make a zoom out of the image, you will find that this image is uncomfortable because its edges are sharp and not as comfortable as those with low resolution *. advantages of ICO files *. ICO can represent transparent images. On the other hand, it can store images with multiple resolutions, so that the corresponding resolution can be displayed as needed to achieve the best effect!
The greenfish icon editor pro tool clearly shows the features of *. ICO files!
A complete *. ICO file contains multiple resolutions! As shown in!
Extended reading: Structure Analysis of icon (ICO, cur) files