Since the glowstone retexture in the style of the sea lantern received such a nice response, I have decided to make the opposite for all the people who prefeer the original glowstone
Decorative prismarine blocks
Prismarine Crystals – Minecraft Wiki
Sea Lantern – Minecraft Wiki
Prismarine – Minecraft Wiki
Prismarine Enhanced(additional features for prismarine. Now with Colored Light compatibility!) - Minecraft Mods - Mapping and Modding: Java Edition - Minecraft Forum - Minecraft Forum
Easiest Guardian Farm in Minecraft! Sea Lanterns, Dark Prismarine, Etc! | Best, Easy Minecraft Farms - YouTube