BlurEffect: "EXTRA_LIGHT" | "LIGHT" | "DARK" | "REGULAR" | "PROMINENT" | "SYSTEM_ULTRA_THIN_MATERIAL" | "SYSTEM_THIN_MATERIAL" | "SYSTEM_MATERIAL" | "SYSTEM_THICK_MATERIAL" | "SYSTEM_CHROME_MATERIAL" | "SYSTEM_ULTRA_THIN_MATERIAL_LIGHT" | "SYSTEM_THIN_MATERIAL_LIGHT" | "SYSTEM_MATERIAL_LIGHT" | "SYSTEM_THICK_MATERIAL_LIGHT" | "SYSTEM_CHROME_MATERIAL_LIGHT" | "SYSTEM_ULTRA_THIN_MATERIAL_DARK" | "SYSTEM_THIN_MATERIAL_DARK" | "SYSTEM_MATERIAL_DARK" | "SYSTEM_THICK_MATERIAL_DARK" | "SYSTEM_CHROME_MATERIAL_DARK"
The blur effect style. iOS only.