cefsharp

Probably something like:

type Color = { red: float32; green: float32; blue: float32; alpha: float32 }
type IBrowserWindow =
    abstract member BackgroundColor: Color with get, set
    // ...

MP4 Play available no support & not Supported Available [MP4]

WidevineCdm is available manifest.json

{  
  "arch": "ia32",    
  "name": "WidevineCdm",
  "description": "Widevine Content Decryption Module",
  "manifest_version": 2,
  "version": "4.10.1440.18",
  "os": "win",
  "x-cdm-codecs": "vp8,vp9.0,avc1",
  "x-cdm-host-versions": "10",
  "x-c