electro party music poster template. 80s retro sci-fi background with sunrise or sunset. futuristic synth retro wave

1980 1990s 80s 90s abstract background banner chrome computer design flyer funky future futuristic galaxy game geometric grid icon illustration laser light mountain neon night nostalgia pink pixel planet poster purple rave reality retro scifi shiny stars sun sunset symbol synth template trendy triangle vibrant vintage virtual wave