Is there any software that would help me convert a large amount of small SVG files to PNG?
It would be great if it would let me specify the color to use for any solid paths in the SVG files.
That should be possible using ImageMagick, which is available cross-platform (Linux, Mac, Windows). This software ships with a bunch of command-line utilities, perfectly fitting your needs.
Let's give me an example: Say you've stored a bunch of your
*.svg in the current directory, and want to convert them to
*.png – that would be a one-liner:
convert -format png *.svg
A more detailed description can be found with the ImageMagick examples, or a simple Google-search for "imagemagick convert svg to png". As I've not used ImageMagick in this manner, I cannot give you the exact parameters for your "color issue" – but I'd wonder if that wouldn't be possible.