ios - Initial app load tab bar tint blinking -

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when ios application starts tab bar icons have default tint (light blue). setup own custom tint color in viewdidload. applies delay , see transition between default tint color , custom tint color. how can apply custom tint color tab bar before interface appear , eliminate color blinking?

override func viewwillappear(animated: bool) {     super.viewwillappear(animated)      // set tint here after view has been loaded     }

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