Gravity.cpp marked executable?

[JasonS05]

So, I cloned the Github repository so I could compile it locally and experiment with some changes, and while navigating the directory structure with vim I noticed that Gravity.cpp was highlighted like an executable file. Attempting to run it with ./src/simulation/Gravity.cpp gave me a syntax error, presumably due to an attempt to parse it as a .sh file. Attempting to run any other file, e.g. Gravity.h, gives a Permission denied error as expected.