Several questions!

1. Do the highlighted "for"s mean "in support of"?

2. Does "He produced the iconic image" mean "he created his famous iconic painting"? Does anyone who which painting it is referring to?

3. Does "he reinterpreted it in prints" mean "he reproduces it in prints"?

4. Does "He made activist appearances" mean "he created paintings"?

Context:
Picasso proved to be a bigger problem for almost the entire political spectrum, for the West as well as for the USSR. Like Guttuso, he bridged the cultural Cold War divide. He was a new PCF member in the 1940s.He produced the iconic image for the new Soviet-backed “peace movement” of 1949. The “national congresses” for this movement took place exclusively in major cities in Western Europe; it was the USSR’s anti-militarist response to the formation of NATO that same year. Picasso’s peace dove became ubiquitous throughout Eastern Europe, and he reinterpreted it in prints well into the 1960s. He made activist appearances for Stalinist causes during the 1950s; he showed his work at the Pushkin Museum in Moscow in 1956.

1. Do the highlighted "for"s mean "in support of"?

2.

Context:
He produced the iconic image for the new Soviet-backed “peace movement” of 1949. The “national congresses” for this movement took place exclusively in major cities in Western Europe; it was the USSR’s anti-militarist response to the formation of NATO that same year. Picasso’s peace dove became ubiquitous throughout Eastern Europe, and he reinterpreted it in prints well into the 1960s. He made activist appearances for Stalinist causes during the 1950s; he showed his work at the Pushkin Museum in Moscow in 1956.1. Do the highlighted "for"s mean "in support of"? 2.

Context:He produced the iconic image for the new Soviet-backed “peace movement” of 1949. The “national congresses” for this movement took place exclusively in major cities in Western Europe; it was the USSR’s anti-militarist response to the formation of NATO that same year. Picasso’s peace dove became ubiquitous throughout Eastern Europe, and he reinterpreted it in prints well into the 1960s. He made activist appearances for Stalinist causes during the 1950s; he showed his work at the Pushkin Museum in Moscow in 1956.