Custom Cocoa button class with PowerPoint 365 look & feel

I need an Objective-C class derived from NSButton or NSControl replicating the exact look & feel of buttons on the PowerPoint 365 ribbon, both in light and dark mode (flat appearance, no border, different background color on hover and click, etc.). The buttons will be instantiated via code later on. The label and icon should be optional, i.e. some instances will only have an icon, some will only have a label and some will have both. There will be follow-up projects for split buttons and drop menus.