1280x2560 Gradient Blue, Orange, Green And Yell... 〈720p〉

It sounds like you're looking for something specific related to that resolution and gradient color scheme , but I want to make sure I provide exactly what you need. That phrase could refer to a couple of different things:

A for a digital wallpaper or display background with those specific dimensions and colors. 1280x2560 Gradient blue, orange, green and yell...

Could you clarify if you are looking for a about this design, or were you perhaps looking to generate an image using those parameters? It sounds like you're looking for something specific