Integral mathematical symbols, color transition from gray to blackIntegral mathematical symbols, color transition from gray to black
A glowing ball of stripes from dark green to bright yellow in the centerA glowing ball of stripes from dark green to bright yellow in the center
Patterns from red to yellow on a simple backgroundPatterns from red to yellow on a simple background
It's fun to roll down from the sky on a multicolored rainbowIt's fun to roll down from the sky on a multicolored rainbow
Multicolored pieces from a kaleidoscope. rainbow mosaicMulticolored pieces from a kaleidoscope. Rainbow mosaic
Delicate white lines from a ray of light among the blueDelicate white lines from a ray of light among the blue