import { StrictStyleOptions } from 'botframework-webchat-api';
export default function createUploadButtonStyle({ sendBoxButtonColor, sendBoxButtonColorOnFocus, sendBoxButtonColorOnHover, sendBoxHeight, subtle }: StrictStyleOptions): {
    width: string | number;
    '& > .icon > svg': {
        fill: string;
    };
    '& > input:hover + .icon > svg': {
        fill: string;
    };
    '& > input:focus + .icon > svg': {
        fill: string;
    };
};
//# sourceMappingURL=UploadButton.d.ts.map