Level 36Running a little dry on hints here, but everything you need can be found. It's just a little more cryptic than the last couple levels. I'll give a bit more of a nudge than usual here because I feel like this is a harder level.
The title is relevant here, not in terms of what the solution is, but how the tools you've been using might not be good enough for the job. In a previous puzzle, you had to use GIMP to do some image editing, and that led to a solution. Try and do that with this picture, and you'll get a message (which is viewable anyway but might be harder to see on dark monitors), and that's where you'll be stuck without finding the next piece of the puzzle.
Obviously at this point you're checking the source. Most puzzles have some kind of hint in the comments, and sometimes the names of files can be hints as well. But what else can be looked at? If it looks unfamiliar, maybe a quick Google search can explain what you're looking at and what should be done with it. About ten levels ago, you did a similar step to get what was needed to work with.