Who created the illustration for the stamp that was themed 100 years of scouting?
CREATE TABLE "2007" (
  "date_of_issue" text,
  "theme" text,
  "denomination" text,
  "design" text,
  "illustration" text,
  "printing_process" text,
  "paper_type" text,
  "first_day_cover_cancellation" text
);
SELECT "illustration" FROM "2007" WHERE "theme"='100 Years of Scouting';