Are Easter eggs uniformly colored or diverse in decorations?

from Francis X. Weiser's The Easter Book

(Harcourt Brace Co., 1954):

In most countries the eggs are stained in

plain vegetable dye colors.  Among the

Chaldeans, Syrians, and Greeks, the

faithful present each other with crimson

eggs in honor of the blood of Christ.  In

parts of Germany and Austria, green eggs

alone are used on Maundy Thursday, but

various colors are the vogue at Easter.

Some Slavic peoples make special patterns

of gold and silver.  In Austria artists design

striking patterns by fastening ferns and tiny

plants around the eggs, which show a white

pattern after the eggs are boiled.  The Poles

and Ukrainians decorate eggs with plain

colors or simple designs and call them

krasanki .  Also a number of their eggs

are made every year in a most distinctive

manner with unusual ornamentation.  These

eggs are called pysanki from pysac : to write/

design.  Each is a masterpiece of patient

labor, native skill, and exquisite workmanship.

Melted beeswax is applied with a stylus to

the fresh white eggs, which are then dipped

in successive baths of dye.  After each dipping,

wax is painted over the area where the preceding

color is to remain.  Gradually the whole complex

pattern of lines and colors emerges into something

fit for a jeweler's window.  No two pysanki are 

identical.  Symbols must used are the sun (good

fortune), rooster or hen (fulfillment of wishes),

stag or deer (good health), flowers (love or charity).

At Easter the pysanki are first blessed by the priest

and then distributed among relatives, friends, and

benefactors.  These special eggs are saved from

year to year like symbolic heirlooms, and can be

seen seasonally in Ukrainian settlements and shops

in the United States of America.