Social networking giant Twitter has introduced a strict set of instructions as it launched a new 'Twitterbird' logo.
The website is getting rid of its unmistakeable cartoon-style bird and is replacing it with a simplified, dark blue version of the famous image.
"Whether soaring high above the earth to take in a broad view, or flocking with other birds to achieve a common purpose, a bird in flight is the ultimate representation of freedom, hope and limitless possibility," Sky news quoted Twitter creative director Doug Bowman, as writing in the site's blog.
According to the report, on the network's "brand resources" page, users would discover that there are limits to their possibilities and freedoms when it comes to using the new logo.
A long list of rules lays out "do's" and "don'ts" for Twitter users, web designers, authors and advertisers, which includes giving the bird a speech bubble, rotating, animating or duplicating the bird and changing its colour.
Twitter claimed the guidelines are there to help users, so they do not have to "worry about negotiating a separate agreement with us or talking to our lawyers".owever, the instructions quickly became the subject of criticism and mockery on the web.