How do I display alpha textures?

Support Materials and Textures
#1

I have a material that is yellow and I want to put a texture with some text over the yellow material, the letters are black and the rest of the texture is Alpha.

#2

What is “display” supposed to mean? In the viewport?
Or are we talking about rendering? If so, please at least tell us which render engine you intend to use.

#3

Feed the image into the color slot of a diffuse or other shader. Combine it with the other shader in a mix shader with the image’s alpha output as the factor. (Assuming you’re using the Cycles renderer.)

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