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Question

I can't understand what the task is about
```structs.swift
struct RGBColor {
  let red: Double
  let green: Double
  let blue: Double
  let alpha: Double
  let description: String
  // Add your code below
  init (red: Double, green: Double, blue: Double, alpha: Double, description: String) {
        self.red = red
        self.green = green
        self.blue = blue
        self.alpha = alpha
    }
}
```

Dave Harker · Accepted Answer

Hi Johnny Nguyen (https://teamtreehouse.com/johnnynguyen6),
You're so close!!  Just misreading the challenge on one part (had to do the challenge myself to confirm that!)
Your task is to write a custom initializer method for the object. Using the initializer assign values to the first four properties. 
You basically nailed this part, but added a 5th property - description.  
swift
// Challenge: first four (4) properties (r/g/b/a). Got to remove that description
init (red: Double, green: Double, blue: Double, alpha: Double, description: String) {
        self.red = red
        self.green = green
        self.blue = blue
        self.alpha = alpha
}

Next part of the challenge
Using the values assigned to those properties create a value for the description property that is a string representation of the color object.
... description property should look like this: "red: 86.0, green: 191.0, blue: 131.0, alpha: 1.0"
Let's use some string interpolation and build it to the specs of the example given
swift
        self.description = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)"

Pop that into your initializer method and you should be laughing.  
Hope this helps you out mate.
Great effort! and keep on coding :dizzy:  
Dave

Johnny Nguyen · Answer

I've already found an answer for myself. Thank you anyway!

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Dave Harker

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