ils . ▁Most ▁of ▁the ▁early ▁t ' a eng h wa ▁were ▁painted ▁on ▁sil k ▁gau ze ▁using ▁min eral ▁colours . ▁Popular ▁them es ▁included ▁the ▁P ure ▁Land ▁Buddh ism ▁( K ore an : ▁Ch ont ' o ) ▁and ▁A val ok ite ś var a . ▁T ' a eng h wa ▁were ▁popular ▁from ▁the ▁ 1 7 th ▁century ▁on wards . ▁In ▁the ▁Ch os ŏ n ▁period , ▁m ural ▁painting ▁started ▁to ▁lose ▁its ▁popular ity , ▁making ▁way ▁for ▁t ' a eng h wa . ▁The ▁scroll s ▁were ▁often ▁hang ▁behind ▁the ▁central ▁Buddh ist ▁sculpt ure ▁in ▁a ▁Buddh ist ▁temple . ▁ ▁This ▁was ▁meant ▁to ▁enh ance ▁the ▁sculpt ural ▁image ▁as ▁well ▁as ▁provide ▁an ▁amb iance ▁to ▁the ▁temple ▁interior . ▁Tow ards ▁the ▁end ▁of ▁the ▁ 2 0 th ▁century , ▁t ' a eng h wa ▁were ▁in ▁decl ine . ▁ ▁The ▁t ' a eng h wa ▁was ▁considered ▁more ▁of ▁a ▁craft ▁than ▁a ▁high ▁art ▁practice , ▁thus ▁nov ice ▁mon ks ▁who ▁showed ▁talent ▁were ▁trained ▁on ▁the ▁tradition ▁by ▁painting ▁various ▁mand atory ▁images . ▁Work sh ops ▁were ▁sometimes ▁located ▁within ▁the ▁temple ▁grounds ▁and ▁it ▁was ▁here ▁that ▁pain ters ▁shared ▁their ▁craft ▁with ▁pup ils . ▁In ▁the ▁past , ▁pain ters ▁worked ▁on ▁commission ▁but ▁with ▁few ▁compet ent ▁master s ▁of ▁t ' a eng h wa ▁painting ▁left