Yeah, no worries, I was just saying that it can be done, the decision is yours, of course.
The colors not being accurate might have been if you only tinted without greyscaling first to recolor the image, though even so, using color matrices gets the job done if used properly (took me a while to figure what each of its parameters meant in practice).
My released Earth skin is actually done in Javascript where they have a similar color matrix available (the skin has quite a few requirements, by the way), but I have my Rainmeter only equivalent which is too large to post here (9 GB, lots of image frames!) where I successfully did it in Rainmeter.
A gauge maker would be great, it's up to you if you want to try it, I suggest starting simple so you don't waste time if it won't eventually work exactly as you want it to (you know best the particularities of your skin).
If by any chance you can / want to give a simple example of how the colors might be inaccurate when tinting or applying a color matrix, I'd be glad to help in that regard if possible, by the way. Nice job with your skin, forgot to say this.