It's harder to find backlight -
compatible keycaps — the kind that allow the lights to shine through the letters — so replacement options for those will be more limited than for other keyboards.
Not exact matches
Chances are if it's a recent purchase, however, there's a very strong chance that it either uses actual Cherry MX switches or the stems are at least
compatible, which means
keycap sets made for a Cherry MX keyboard will work with many other switches too.
While the BlackWidow Tournament Edition Chroma V2 is
compatible with Cherry MX
keycaps, it has a nonstandard bottom row — the Windows key, Fn key, and Menu key are all smaller than on a standard keyboard.
Logitech's G910 Orion Spark and G910 Orion Spectrum are available only with Logitech's proprietary Romer - G switches, which are tactile switches similar in feel to Cherry MX Brown but made with a different kind of stem, so they're not
compatible with the most popular types of
keycaps.