how to make outline color of each char(letter) of every word

in anagram – Bitmap font class, if i wanna make outline color of each char(letter) of every word, how to modify the rendering algorithm so that it only renders the edges?

I made a shader to create an outline of an image, it’s on the forum so have a search. All you have to do is make a mesh with the texture you want and apply the shader. To make it more efficient do the above then draw the mesh on to a separate image and sprite that image.