Yes, that too! But I was actually referring to the planet set as seen in "Haven" (in the holodeck), "Hide and Q," and "Skin of Evil." The simple desert looking set with the blank backdrop for the sky, colored differently for each planet. As I recall they stopped using that set after the first season or two and went almost exclusively with the "planet hell" set thereafter, which seemed to always be inside a cave.
Oh, gotcha. Yes, that's really noticeable in the first season. Studio desert rock planet with lighting used to create different coloured skies.