Fundamental reading app for CHM

There are so many books made in the format of CHM.
It was horrible to me that the author modified the icon of this app several times since I like to organize my apps together which have the similar color!

CHMate+很好用，原先设计如果是因为跟Apple官方iBooks太像了所以要改那还算了。何必为了几个评论改了那么多次图标。
只遇到过一个文件编译CHM时都是乱码，不知道如何解决。

Roooooooooooc about CHMate+: EPUB&CHM Reader, v6.7