▁collection ▁of ▁the ▁National ▁Gallery ▁of ▁Art ▁was ▁recently ▁on ▁view ▁there . ▁Within ▁the ▁Washington ▁Color ▁School , ▁Re ed ▁was ▁recognized ▁as ▁the ▁most ▁successful ▁at ▁using ▁the ▁trans par ency ▁new ▁ac ry lic ▁pain ts ▁offered ▁to ▁overlap ▁colors , ▁something ▁Morris ▁Louis ▁( 1 9 1 2 – 1 9 6 2 ) ▁had ▁expl ored ▁in ▁his ▁Ve il ▁paint ings ▁but ▁abandoned ▁as ▁he ▁could ▁not ▁achieve ▁the ▁v ib ran cy ▁he ▁desired ▁with ▁the ▁first ▁generation ▁of ▁ac ry lic ▁pain ts , ▁Mag na . ▁ ▁Re ed ▁system atically ▁increased ▁the ▁complexity ▁of ▁his ▁color ▁relationships ▁in ▁his ▁sh aped ▁canvas ▁works ▁from ▁ 1 9 6 7 ▁to ▁ 1 9 7 2 . ▁Re ed ▁created ▁increasing ly ▁complex ▁forms ▁by ▁adding ▁an ▁additional ▁side ▁to ▁his ▁canvas ▁shape ▁each ▁time ▁he ▁felt ▁he ▁had ▁exha usted ▁the ▁color ▁possibilities ▁of ▁the ▁previous ▁form . ▁With ▁each ▁new ▁shape , ▁Re ed ▁applied ▁color ▁less ons ▁learned ▁from ▁the ▁prior ▁series ▁then ▁expanded ▁on ▁them . ▁Looking ▁at ▁the ▁series ▁Emer ging ▁( four ▁sides ), ▁To pe ka ▁( five ▁sides ), ▁H ack ens ack ▁( six ▁sides ), ▁and ▁Z ig - Fields ▁( se ven ▁sides ), ▁from ▁ 1 9 6 7 ▁one ▁sees ▁how ▁Re ed ▁created ▁complicated ▁geometric ▁shapes ▁to ▁master ▁intr icate ▁color ▁challeng es . ▁ ▁Rec ogn ition ▁for ▁Re ed ▁as ▁an ▁early ▁member ▁of ▁the ▁Washington ▁Color ▁School