[Home](./index.md) > [bitburner](./bitburner.md) > [UserInterfaceTheme](./bitburner.userinterfacetheme.md) > [backgroundsecondary](./bitburner.userinterfacetheme.backgroundsecondary.md) ## UserInterfaceTheme.backgroundsecondary property **Signature:** ```typescript backgroundsecondary: string; ```