Adobe Illustrator 2020-2022 共通
Splash Screen 自作＆自分用↓
https://imgur.com/a/8kMhoC0

C:\Program Files\Adobe\Adobe Illustrator 2020\Support Files\Contents\Windows\ai_cc_splash.png
C:\Program Files\Adobe\Adobe Illustrator 2021\Support Files\Contents\Windows\ai_cc_splash.png
C:\Program Files\Adobe\Adobe Illustrator 2022\Support Files\Contents\Windows\ai_cc_splash.png

※ai_cc_splash.png をリネームして差し帰るダケ

よろしければどうゾ