Shades create some files in safe area of Windows' filesystem. This location
is in user-dependent "Application Data" (%appdata%). This translates to
different places under different OSes, thus nothing sure can be said here.
Annyway, since every program puts it own folder there, we do so, too.
Surprisingly, it is "Shades". And inside there another folder per data format
- they are numbered accordingly.

Let's consider this location the root for now. What files are in there?

+-------------------------+---------+-----------------------------------------+
| Location                | Version | Description                             |
+-------------------------+---------+-----------------------------------------+
| /Options.dat            | any     | Basically what the app has in options   |
|                         |         | tab - colors, folders, highlighting,    |
|                         |         | mouse and such. The format is hopefully |
|                         |         | self-explanatory.                       |
+-------------------------+---------+-----------------------------------------+
| /*.png                  | - 5.0   | Background pictures in PNG format.      |
|                         |         | These files have random 8-digit suffix. |
+-------------------------+---------+-----------------------------------------+
| /Editors.dat            | + 5.0   | Editor list - nothing more. Also easy   |
|                         | - 6.0   | to understand                           |
+-------------------------+---------+-----------------------------------------+
| /Backgrounds/*.png      | + 5.0   | Same as seen above, only a bit more     |
|                         |         | organized...                            |
+-------------------------+---------+-----------------------------------------+
| /Backgrounds.dat        | + 5.0   | Background list, separated from main    |
|                         |         | config file.                            |
+-------------------------+---------+-----------------------------------------+
|                         |         |                                         |
|                         |         |                                         |
|                         |         |                                         |

In "version" column, + indicates version when the file was added and - when it
was removed.