I’m confused

I have been doubting my asexuality a bit and i stumbled across an image that explains you different types of attraction. I read some of it, and got to the sexual attraction part. There was one word where i have been questioning for a while. It said ‘’ its like everyone is in grayscale but this specific person is in full color ‘’ this part i didn’t understand. For me, it sounds more like romantic attraction or emotional attraction ( maybe aesthetic). Look i have never felt that mine of feeling ( i think ), but anytime i Watch love stories or romantic novels they would say things like that, so i assumed that it is like… Idk romantic??? But now Idk what this word is suppose to mean cuz it doesn’t sound sexual to me. Is there anybody who can help me understand that word. I feel lost rn😭😭