I really don't have an eye for this. Can someone identify this font please:
It is a menu of the OSX app named Brackets - i think this font looks awesome but i can't with certainty seem to identify it.
When Mac applications come with their own fonts, you can often find these within the application package (which is technically just a folder): Right-click on the application icon within the Applications folder and choose
Show Package Contents. A new Finder window containing subfolders will open. Instead of rummaging each and every subfolder for the font files, use the search field of the window: type in ttf, ttc, or otf and choose to search within the current folder (e.g. 'Brackets.app').
In the case of Brackets, it's the Source Sans Pro family (and Source Code Pro) by Paul D. Hunt, released as open-source ware by Adobe. The font covers a lot of characters (1107 in version 1.050), and also offers a number of glyph options via OpenType features, e.g., style variants of the letters 'l' and 'g' (open or two-storeyed), old-style figures, small capitals, etc.
Download via SourceForge: http://sourceforge.net/projects/sourcesans.adobe/files/ Font info at Adobe: http://store1.adobe.com/cfusion/store/html/index.cfm?event=displayFontPackage&code=1959
Source Sans Pro is also in Google Fonts.
It looks a lot like Trebuchet MS, but the 'g' has a closed loop. I did a search in Google Fonts and Open Sans looks a lot like it:
But the O seems a little thicker than your sample.
I'd definitely say its a humanist font.