optical effect

• illusionMisleading sensory impression
• shimmerTremulous, wavering light
• refractionWave bending between media
• glareFierce stare or brightness
• haloLuminous ring overhead

lens · prism · rainbow · glint · sparkle · mirage · reflection · distortion · glimmer · iridescence · hologram · flare · dazzle · blur · glow · translucent · kaleidoscope · diffraction

• effectseffect, special effect, side effect, consequence, result
• Color FieldMark Rothko, flat color, color saturation, large canvas, veils