All extras are installed by opening the header and placing the contents inside of GameData/Spectra; inside the Spectra folder.
Hey, Avera9eJoe here. Spectra is an ultimatum of a visual pack. A well optimized and yet breathtakingly beautiful revamp of all celestial bodies in KSP. Fly through the geysers on Minmus and Eeloo. Soar across Laythe's glittering bioluminescent sky. Skip across the dust on Minmus, Pol, and Vall. Descend through Eve's mystic clouds. Or like they say, die trying.
Spectra is designed with these players in mind:
Streamers: While made to be pretty Spectra is as optimized as possible. It runs very well on a high end system and there are ways to squeeze out extra performance as well if need be. In terms of pure FPS values, it's a dead tie with SVE.
Film makers: This pack is my interpretation of the greatest visuals in KSP. An ultimate cinematic suite.
Stock part purists: Spectra does not effect the stock parts, colliders, or physics. This adds visual effects and no more, meaning it runs exactly the same as an un-modded game. Just prettier.
Nostalgic veterans: Many visual packs have risen and fallen over the years, and in making Spectra I'm taking the best concepts of each, expanding on them, and then applying them to an updated visual pack reminiscent of old. KSPRC's surface textures, Stock Visual Enhancement's storms, Better Atmosphere's glow, Astronomer's colors, it's all there. The credits at the bottom of the page highlights this in more detail. It's a lot to live up to, and I hope it meets your expectations.
Raw stats are from the beginning of time until now. Each follower and download entry represents one hour of data. Uneventful hours are omitted.