2025-01-05 Thanks PinkHoodie for finding a weakness in the algorithm for region (loop) fusion, meanwhile corrected, before the release, and for suggesting a clearer quadrilateral symbol and stronger highlighting of incorrectly-shaped regions. 2025-01-06 The rule panels for Sample Paint サンプルペイント were crafted by PinkHoodie, who also sent the cover pic and transcribed the puzzle used to ensure the ruleset was correct. Thank you! 2025-01-07 An edge-case sent by PinkHoodie was corrected (cause: not considering the case of inner loops) 2025-01-12puzzlettersPinkHoodie mailed 2 Sample Paint サンプルペイント (classic) puzzles - धन्यवाद!