I am so addicted to use Construct 2 that I have used it to generate thousands of colour combinations of my last sprite font: Boxed Sprite Font in just a few minutes. Each colour combo is directly saved in a PNG file.
After setting up the destination folder and a temporary file name, the whole process is totally automated!
That's one of the many examples of how Construct can be used to develop tools too and not only games!
Here instead, you can see the video of Boxed Sprite Font: