Download this theme on the PlayStation Store
Here's on for the Dark Souls fan! Saying this theme is dynamic carries a double meaning, as it's probably the most dynamic of the lot. It features your hero walking across what looks like old linen (or maybe parchment). He comes across various environments as he progresses, all of which look like old engraved images, and their deep blackness throws their intricate details into sharp relief against the rest of the scenery. They vary, too, so it's almost entertainment in itself.
When it comes to PS4 themes, it's definitely not true that you get what you pay for. There is a wide variety of free themes just waiting to find their new home on your console, whether you're a fan of RPGs, platformers, sci-fi, or fantasy.
Let us know in the comments which ones you plan on downloading or which ones you'd like to see added to this list!