How change emacs-rime's background?

my emacs-rime's background is black in every themes https://preview.redd.it/y2r6c6dtcml91.png?width=548&format=png&auto=webp&s=b7c50191da12c1580bd40f7cc4de23a64e920093 How could change it to blue?

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I don't have the rime package but when I look the source I think this is the correct answer: `(set-face-background 'rime-default-face "#hexvalueofcolor")` Example: for red `(set-face-background 'rime-default-face "#ff0000")`

thank you.