declare module '@mui/material/styles' {
    interface Palette {
        shadowColor: Palette['primary'];
    }
    interface PaletteOptions {
        shadowColor: PaletteOptions['primary'];
    }
    interface Theme {
        panelSpacing?: string;
    }
    interface ThemeOptions {
        panelSpacing?: string;
    }
}
export declare const theme: import("@mui/material/styles").Theme;