一、影响顾客食欲 First, affect the appetite of customers 根据相关研究调查发现红黄色能勾起食欲，所以肯德基和麦当劳采用黄色比较多，蓝色在一定程度上抑制食欲，绿色代表健康和活力能让人食欲大增。 According to the relevant research found that red and yellow can arouse appetite, so KFC and McDonald's use yellow more, blue to some extent, inhibit appetite, green represents health and vitality, can make people appetite increase. 二、影响主题调性 Two, influence theme to...