20190916 Update

Version: 2.6.7 -> 2.6.8

• New widgets: Sticker
  
  
• Added 'Foreground Color' option for some widgets
  
  
• Added 'Title Bar Opacity' option for some widgets
  
  
• UI changes for some widgets
  
  
• Resource Monitor update (Admin permission is required)
  
  
• Bug fixes and code optimization