abstract
attractive
backdrop
background
beautiful
blue
blur
bokeh
bright
cold and warm
color
colorful
crimson
cyan
dark
defocused
general
gradient
gray
greenish
grey
harmonious
harmony
light
mixture
multiple
neutral
nice
ocean
pastel
polygon
purple
ray
red
seamless
sky
soft light
spot
star
texture
tint
transition
universe
water
yellow