I do not know if you have an iPhone or iPad, but if so, you have surely noticed that in some applications the top bar becomes monochrome with a dark background, something that we cannot do on Mac by default but we can do it through a tweak .
The application that will allow us to achieve this is called MenubarFilter And it works like a charm since it doesn't require any kind of configuration, yes, it has some graphical glitches in specific situations and you have to keep that in mind before using it.
To remove the application you have to open the Activity Monitor and end it through said app.
Source | OS X daily
How can I uninstall this application later from lion?
Thank you