启动的时候会出现多次 Warning: setting attribute `:background' of face `default

[heheda123123]

虽然不影响使用，但是可以的话最好能去掉

Warning: setting attribute `:background' of face `default': nil value is invalid, use `unspecified' instead. [7 times]
Warning: setting attribute ‘:background’ of face ‘default’: nil value is invalid, use ‘unspecified’ instead.
*** Emacs loaded in 1.07 seconds with 1 garbage collections.
Warning: setting attribute ‘:background’ of face ‘default’: nil value is invalid, use ‘unspecified’ instead. [2 times]
Loading c:/Users/Administrator/.emacs.d/.session...done
For information about GNU Emacs and the GNU system, type C-h C-a.
Loading c:/Users/Administrator/.custom.el (source)...
[yas] Prepared just-in-time loading of snippets successfully.
Loading c:/Users/Administrator/.custom.el (source)...done

[redguardtoo]

Not sure about this. Could be the random color theme we are using doesn't support some font face, you could ignore it.