The names of layers in the Layers palette are indeed displayed in a rather small font. You can change the name of any layer by clicking on it, and it might help to use capital letters, or even to add spaces between letters.
You can also go to User Interface > Text Size > Large. This makes all the text in the interface larger, not just layer names, which isn’t a bad option if you’re trying to reduce eye strain in general.
You can also find the PaintShop Pro Q&A video here on the Discovery Center, where we answer more questions submitted by PaintShop Pro users