I have a custom font (a .ttf file) that I am using in my project. I am able to use the font with no problem, but I cannot apply the FontAttributes (Bold & Italic) to it. Some fonts have separate .ttf files for regular/bold/italic/bolditalic, but in my case, there is only one file. In the UWP version of my app, I was simply able to set a property such as FontWeight to make the font bold, but that does not work with Xamarin.Forms. What can I do? Thanks.