## MemoryFontSource.CacheKey property The key of this source in the cache. ```csharp public string CacheKey { get; } ``` ## Remarks This key is used to identify cache item when saving/loading font ......ttf", 0, cacheKey1), new FileFontSource(FontsDir...FileFontSource(FontsDir + "Arvo-Bold.ttf", 0, cacheKey2) }); using (MemoryStream...