Changing Site Name Font in 5.5

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Hi,
I have 5.5 and am trying to change the font per the following How To but I'm not getting there. I am using the Dark Chocolate Theme. I can edit the Global Stack "Site Name" to make it look just the way I want it but it doesn't show up on the website. Rather, it is controlled by the System and Settings area instead. Any changes I make there under Systems and Settings/Basics/Site Name do show up but only in the default font with no editing ability in that location. How do I get it to pull the info from the Global Stack area instead of the systems and settings area?
Thanks for your help.
Tom
Also, the domain name ishttp://www.naclodesigns.com.

Version 5.5.x
If you're using the latest version of concrete5 and one of the default themes (Plain Yogurt, Greek Yogurt, Green Salad), you can put anything you want in that logo/site name space using Global Stacks.

Go to Dashboard > Stacks & Blocks > Stacks. This will open up a Stacks overlay. Under Global Areas, select “Site Name” and then click the block you want to alter (with a new site that has been filled with sample content this would only have one block of Content “My Site”). Select edit from the popover menu, change your site name and click save. Now when you return to the website you will see your new and improved Site Name.