Elijah's poem sets two colours against each other, and the contrast carries the whole thing. Pink is what the speaker is given: coloured, born, presented, made. Blue is what the speaker wants. Judging by the colours, which are often tied to ideas about boys and girls, it reads as a poem about gender identity, though it never says so outright. That restraint is part of its power.
Look at the verbs. The pink side is passive, things done to the speaker by others. The blue side is about inner pull: wants, longs, etches, needs. The wanting grows stronger with each line, from a simple wish to something closer to necessity. "Etches" is the odd, striking choice, suggesting a desire carved deep and impossible to rub out.
The mood is quiet but insistent. The short lines and steady repetition feel like someone saying the same truth again and again, patiently, until it can't be ignored.