White (No color code): Regular File or Normal File. Blue: Directory. Bright Green: Executable File. Bright Red: Archive file or Compressed File. Magenta: Image File.

Why are my folders highlighted blue Linux?

Blue text with green background indicates that a directory is writable by others apart from the owning user and group, and does not have the sticky bit set ( o+w, -t ).

What does red mean in Linux?

Most Linux distros by default usually color-code files so you can immediately recognize what type they are. You are right that red means archive file and . pem is an archive file. An archive file is just a file composed of other files.