blue color setup file

Avast Free Antivirus / Premium Security
1

why the colour in setup file avast, blue color ? this is normal ?

http://cdn.kaskus.com/images/2014/10/22/6158386_20141022054827.png

2

http://www.technipages.com/windows-files-and-folder-names-appear-in-blue

3

Thanks … there i learned somthing new today also :smiley: