This question already has an answer here:
I was going to change Facebook's default login button with my custom image like Mashable.
I mean like this:
But I found a article which state its against Facebook's policies.
Is it really a violation? If it is how come Mashable using custom image? Can someone answer me?
This is the exact image I would like to use.
Facebook mentioned like this in this page.
While you may scale the size to suit your needs, you may not modify the “f” logo in any other way (such as by changing the design or color). If you are unable to use the correct colour due to technical limitations, you may revert to black and white.
So my sign in with Facebook image violating Facebook policy in anyway?