Anyway to hide the menu bar in Yosemite?

[anonymous4a]

Is there anyway to hide the menu bar in Yosemite? not just making the menu bar dark but actually hiding it like the dock bar .

 

[jbarley]

Something like this, maybe?

 

[anonymous4a]

Does this support Yosemite ? I was hoping to hide the menu bar all the time , not only for certain apps . Just like how there's an option to hide the dock bar unless you drag your mouse over it .