MultiSelect background missing

The MultiSelect component has a no-background, while normal input fields have a white background. When you add this component to an element without a white background, it appears differently from other inputs. 

<img width="943" height="412" alt="Image" src="https://github.com/user-attachments/assets/6182e414-8ca9-4172-9bf1-d640753a4431" />
