Change icon of menu button

Hi Will and welcome to E-Learning Heroes!

If that's simply an icon that's been applied via formatting, you can apply the same formatting by taking advantage of the awesome Format Painter tool. 

To do this:

• Select the button that has the formatting you'd prefer to use. Select the "Home" tab along the top of Storyline's ribbon.
• From here, in the "Clipboard" section of the ribbon, select "Format Painter".
•              Note: If you'd like to apply the formatting to multiple objects, double-click "Format Painter".
• Click on the button or object you'd like to change. The formatting should now be applied.

Also, here's some resources that may help:

Using the Storyline Clipboard - E-Learning Heroes

The Format Painter Turbocharges Your Workflow in Articulate Storyline

I hope this helps! :)

Thanks a lot! It helps!

You're very welcome, Will!

Have a great day :)