Mainly Nokia s40 series phones has default folders with icons.
Example- "predefthemes","predeftones","predefrecordings" etc..
You can also create ur folders like nokia's default folders with beautiful icons in ur memory card.
First, create a folder in ur memory card by naming 'Extra'.
Then create ur folders in that 'extra' folder with nokia's default folder names such as,
For music folder, 'predefmusic'; for tones folder "predeftones" ; for graphics folder, 'predefgraphics' ; for videos folder, 'predefvideos' ; for photos folder, 'predefphotos' ; for received file folder, 'predeffilereceived' ; for recording folder, 'predefrecordings' ; for themes folder, 'predefthemes' ; for apps folder, 'predefcollections' ; for games folder, 'predefgames' .
Create folder names with these in that 'Extra' folder in memory card and see the magic.
We all knows that folder naming with '.nth' extension is one way to decorate folders but there is another way to beautify ur s40 memory card's folders.