<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31437301</termId><termName>International Klein Blue</termName><termType>PT</termType><termNote><![CDATA[ International Klein Blue (IKB) is a powdery ultramarine pigment created by Yves Klein in 1956 and patented by the artist in 1960. He used the color, symbolic of purity of spirit, exclusively from 1957 on. ]]></termNote><termCreatedDate>2026-03-30 20:57:54</termCreatedDate><relation><relationType>UF</relationType><termId>31437302</termId><termName>IKB</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31411016</termId><termName>inorganic blue pigment</termName><termType>PT</termType></relation></term>  </Zthes>