When constructing the URL, use the parameter d=404. This will cause Gravatar to return a 404 error rather than an image if the user hasn’t set a picture. If you’re using the .Net control linked to from the gravitar site, you’ll need to modify the IconSet enumeration (and probably pull the code out of the … Read more
To select a default image, you can use the d parameter: http://www.gravatar.com/avatar/3b3be63a4c2a439b013787725dfce802?d=identicon Or without a hash: http://www.gravatar.com/avatar/?d=identicon Or without the d parameter: http://www.gravatar.com/avatar Source: gravatar.com.
The ‘random’ colorful gravatars are displayed because this query string parameter is being added to every gravatar source URL: d=identicon This is done so that if the user doesn’t have a gravatar image associated with his email, this ‘random’ image is displayed, instead of the default blue gravatar image. The following displays the ‘default’ blue … Read more
If I understood correctly you want to return the %x format: you can import “encoding/hex” and use the EncodeToString method str := hex.EncodeToString(h.Sum(nil)) or just Sprintf the value: func md(str string) string { h := md5.New() io.WriteString(h, str) return fmt.Sprintf(“%x”, h.Sum(nil)) } note that Sprintf is slower because it needs to parse the format string … Read more
I found the exact same issue on Mac: Firefox downscales the image really well, while Chrome makes it look blurry, which is very bad. I couldn’t care less about rendering time or speed, I need the logo to look GOOD! I found the following CSS rule fixing Chrome for Mac image-rendering: -webkit-optimize-contrast;