# Creating Platforms in Chapter 4. Opacity problems in children

**URL:** <https://forums.kodeco.com/t/creating-platforms-in-chapter-4-opacity-problems-in-children/20231>\
**Category:** 2D iOS & tvOS Games by Tutorials\
**Created:** [September 23, 2016, 3:12pm UTC](https://forums.kodeco.com/t/creating-platforms-in-chapter-4-opacity-problems-in-children/20231 "2016-09-23T15:12:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![juanmunoz](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/juanmunoz/32/64102_2.png) [@juanmunoz](https://forums.kodeco.com/u/juanmunoz)\
**Post date:** [September 23, 2016, 3:12pm UTC](https://forums.kodeco.com/t/creating-platforms-in-chapter-4-opacity-problems-in-children/20231/1 "2016-09-23T15:12:55Z")

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Hi guys.

I’m using xCode 8.0 and trying to update all the projects to the new Swift 3.

In the page 366 of the book it says:

_**Set the scene’s size to W: 900 and H: 200. Now drag a Color Sprite from the Object Library, name it Overlay, set its Position to (450, 100) and set its Size to W: 900 and H: 200. This sprite is merely a container, so you don’t need to see it; therefore, set its Opacity to 0%.**_

What I’m doing is set the Alpha property to: 0

The problem is that their children inherit this property and they don’t appear even with their own Alpha set to 1.

What am I doing wrong?

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<div class="post-metadata">

**Author:** ![kgorlick](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/kgorlick/32/83738_2.png) [@kgorlick](https://forums.kodeco.com/u/kgorlick)\
**Post date:** [September 23, 2016, 5:37pm UTC](https://forums.kodeco.com/t/creating-platforms-in-chapter-4-opacity-problems-in-children/20231/2 "2016-09-23T17:37:11Z")

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I can see why this would be confusing. Instead of setting the Alpha property to 0, click on Color to bring up the Colors pop-up and then move the Opacity slider to 0.

The upcoming Swift 3/ iOS 10 version of the book will clarify this better.