magic-number 埋め込んでも良さそうなところを修正
magic-number 埋め込んでも良さそうなところを修正

nakamurataichi/Parapara-Canvas-Editor,comozilla/Parapara-Canvas-Editor,nakamurataichi/Parapara-Canvas-Editor,yusukeendou/Parapara-Canvas-Editor,yusukeendou/Parapara-Canvas-Editor,comozilla/Parapara-Canvas-Editor