         XCTAssertNotNil(orange_custom.rgba8Bit)
         XCTAssertNotNil(orange_calibrated.rgba8Bit)
         XCTAssertNotNil(orange_device.rgba8Bit)
-        XCTAssert(orange_custom.rgba8Bit! == (255,165,0,255))
-        XCTAssert(orange_calibrated.rgba8Bit! == (255,165,0,255))
-        XCTAssert(orange_device.rgba8Bit! == (255,165,0,255))
+        XCTAssert(orange_custom.rgba8Bit == (255,165,0,255))
+        XCTAssert(orange_calibrated.rgba8Bit == (255,165,0,255))
+        XCTAssert(orange_device.rgba8Bit == (255,165,0,255))
     }
     #endif
 


      let red = Color(hexString: "f00" )
      XCTAssertNotNil(red)
      XCTAssert(red!.rgba8Bit! == Color.red.rgba8Bit!)

      let white = Color(hexString: "fff" )
      XCTAssertNotNil(white)
      XCTAssert(white!.rgba8Bit! == Color.white.rgba8Bit!)

      let yellow = Color(hexString: "ff0" )
      XCTAssertNotNil(yellow)
      XCTAssert(yellow!.rgba8Bit! == Color.yellow.rgba8Bit!)
    }

    do {

      //purple (85,26,139) "#551a8b"
      let purple = Color(hexString: "#551a8b" )
      XCTAssertNotNil(purple)
      let (r,g,b,a) = purple!.rgba8Bit
      XCTAssert(r == 85)
      XCTAssert(g == 26)
      XCTAssert(b == 139)
