psychedelic multicolor lo-fi grainy gradient textures. colorful gradient background. vibrant noise.

colorful grainy gradient aerosol texture lo-fi abstract blur diagonal stripes background blurry backdrop bokeh focus circle shadow grain degradado mixed stain spray textured effects smooth poster design cover light blue orange glimmer multicolor ombre trendy social media soft pastel noise 90s 80s nineties hue saturation nostalgic warm overlay combinations blurred purple filtered filter wallpaper