If you use the search we have, you can find lots of threads where folks have painted the interior of their TTs. If you haven't tried it yet, I think once you do try it, you'll find it a great tool.
Near the top of most pages, you will see the dark blue horizontal line, and near the right side there is a search button. Experiment with the various types of search and you'll find the one that suits you best. Five minutes with it and you will be a pro.
For subjects like painting, I usually wind up with the Google search in there.
From a Google search on paint window frames, I got a couple of members that removed the paint and polished them!
Here's a simple way to do it:
On my TT, the frames have a very durable paint, and I used Mr Clean right out of the bottl on them, and was amazed at how well they cleaned up. But if you try that, and still want a different colour, IIRC you need to use a good primer, like Killz (check my spelling).
But I think
that you are then free to use a good latex on them then, once they are primed. I'm guessing that a pint would do them all. I bet silver would look nice!
If you do that job, please post lots of pictures, before, during, and after? We are super hungry for photos, they make a little project come alive.