This Sketch symbol library includes over 60 admin symbols, nearly 100 icons, 30 common text styles, and the WordPress core color palette. Symbols provide an easy way to iterate and reuse elements. If they are not your preferred workflow, there is also a SketchPress file in GitHub with over 20-page shells and typical pattern layouts for post. Download this resource and install as a library to Sketch. You will then have these symbols available for all your WordPress admin mockups. Enjoy!