I was noticing the font used on your demo site for the Arkadia template and wanted to match it. I checked the source code and it appears to be "Open Sans", the Google Font. I tried setting that as my Body Font, but I got some serif font instead, not the font on your demo. I then started trying different Google fonts and many would not display the way they should, meaning, the font I was selecting was not displaying (did not match the font shown on the Google Font site), but there was a change in fonts, mostly to serif fonts, and I was trying to find a heavy sans serif font. It's like I can select a Google font, but some other font actually gets loaded. Looking at other posts on Google Fonts on this forum, I wondered if it might have something to do with recently upgrading to an SSL site, "HTTPS://...";. Here's a shot of the font that shows up for the Body Font when I select Open Sans: