求翻译：Color in design is very subjective. What evokes one reaction in one person may evoke a very different reaction in somone else. Sometimes this is due to personal preference, and other times due to cultural background. Color theory is a science in itself. Studying how colors affect different people, either individually or as a group, is something some people build their careers on. And there’s a lot to it. Something as simple as changing the exact hue or saturation of a color can evoke a completely different feeling. Cultural differences mean that something that’s happy and uplifting in one country can be depressing in another.是什么意思？

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