UIImage extension to create 1 pixel color image

UIImage+color.swift

import UIKit

extension UIImage {
	convenience init(color: UIColor) {
		let renderer = UIGraphicsImageRenderer(size: CGSize(width: 1, height: 1))
		let image = renderer.image { context in
			context.cgContext.setFillColor(UIColor.blue.cgColor)
			context.cgContext.fill(CGRect(x: 0, y: 0, width: 1, height: 1))
		}
		guard let cgImage = image.cgImage else { fatalError() }
		self.init(cgImage: cgImage)
	}
}