How to write the pink flag in English?

All the children's shoes upstairs agree, so I won't say much. Is the singular a? Pink? Flag,? Plural pink? Flag. ?

But what if you think of a pink ribbon or a universal logo similar to preventing female breast cancer? Pink? Ribbon? - ? What's the difference between singular and plural?

If it's a medal style, is it pink? Badge.

As shown in the picture, can this be called one? Pink? Ribbon, or? Pink? Badge? But it's not called a flag.