speckled

(verb) produce a mottled effect. Synonyms: stipple, speckle. Example: "The sunlight stippled the trees."

(verb) mark with small spots. Synonyms: speckle, bespeckle. Example: "Speckle the wall with tiny yellow spots."

(adj) having a pattern of dots. Synonyms: dotted, flecked, specked, stippled.