“…Metrics for evaluating web pages and mobile GUIs [29,59,33,54] already exist. Web page evaluation metrics focus on the visual complexity of websites with individual and numeric factors (e.g., word count or graphics count [29]), whereas those for mobile GUIs concern detailed elements that contribute to the overall visual complexity of designs, such as words, color, image counts and sizes, symmetry, balance [29,59], and layouts [33]. There are other approaches for evaluating visual complexity of mobile GUIs [61,60,41,27].…”