All escaped characters in the *.properties files in the format \uXXXX, are displayed in the resource bundle editor as un-escaped unicode literals.
Vice versa, if a non-ASCII character is entered in the resource bundle editor, it is reflected in the underlying *.properties file as a corresponding escaped character in the format \uXXXX.
For example, if the *.properties file contains a property value
then the resource bundle editor will show