Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Finding new graffitis in the Arcade Mode will not count towards the goal and, therefore, does not help in obtaining the Before The Tutorial Mission Starts Light Cone.
Source: https://screenrant.com/honkai-star-rail-before-tutorial-mission-light-cone-unlock/