arrangement
atmosphere
balance
black spot
blackening
blocking the light
bloom
blooping
brushwork
clouding
color
composition
covering
curtaining
darkening
definition
denigration
design
dimming
draftsmanship
eclipsing
extinguishment
flare
fringe area
ghost
gradation
grading
graduation
granulation
grid
grouping
hard shadow
image
interlaced scanning
line
melanization
mixing
monitoring
multiple image
nigrification
noise
obfuscation
obnubilation
obscuration
obscurement
obumbration
occulting
overcast
overclouding
overshading
blacklead
bookkeeping
cilia
gamboge
luster
minutiae
modulations
nuance
palm-lined
scatterer
soften
subsidence
vity
war-paint
widen
aiding
blading
blockading
braiding
cascading
crusading
degrading
downgrading
evading
fading
invading
lading
masquerading
parading
persuading
pervading
raiding
serenading
trading
upgrading
wading