Unicode print style activated as default with too much colored area

Hello, Thanks for the new version. It seems it has some slight troubles with the colors : for an unknown reason, the unicode print style is now activated by default with duf v0.9.0. Same machines, the output uses the ascii style without color as default when switching back to v0.8.1,

By itself it wouldn't be much of an issue if it wasn't also activating the color mode, which for the unicode style, will use a colored background for the usage bars, leaving a very large colored area Example :

# same with : duf --style unicode
$ duf

By comparison, using the ascii style :

$ duf --style ascii

Using Putty with the Window/Translation/Remote character set to UTF8