Change the Focus Outline Colour in Storyline

Have you ever wanted to change the outline colour of the lovely yellow box that pops up when you hit TAB in Storyline? You know the one... it shows which object has focus for those who are using their keyboard to navigate a course.

By default, it looks like this:

While that is a good colour and is accessible against most backgrounds, at times it is less than ideal. For example, if you are using a brown background, it's going to look a little interesting:

Or, maybe you are using a lot of yellow in your course and want to avoid situations like this:

Or, maybe your boss just wants to make sure that the focus colour works well with your corporate colour scheme:

Or they just really like whatever this colour is:

In this tutorial, we will look at how to change the colour of the focus outline that appears when you press tab when viewing a Storyline course.