Okay. So basically you open pixlr and choose an image. Renders/Pictures with transparent backgrounds are often used. Hover/click your mouse to the adjustment option, then find the color lookup tool.

Choose the first one, since you just want a solid color. Having lots chosen will result in multiple colors mixed together. (example - black+white = grey)

First click a "box" then choose the color. The other side is supposed to have the same color.
Result:
To try to make it more "fancier", You might as well make another with the same image, then use oie's overlaying option to result in this:

Nailed it
probably quitting
my sweetest love, my holiest angel.
don't quit after me.
it was just a decision that came up in my mind,
while you were ignoring me,
while i was alone in work.
and i think i might go along with it.
-a