The principle of design that is used to make one element of a design stand out is the Emphasis principle.
The word "emphasis" means to give special "value" / "importance" to something.
The aligns to what the question is asking because an element of a design needs to be given importance in the design in order to stand out. If they made every element in the design stand out, then none of the elements in the design will pop out. This is where emphasis comes in when people design things. When people design things, they emphasize an element that they really want to have stand out to others, and focus on making that element very important.
Descriptive study is designed to explain the distribution of one or more variables in relation to any cause or other hypothesis.
Descriptive studies can be of many types, such as case reports, case series, cross-sectional studies and ecological studies. In the first three of these, data is collected on individuals, the last using data collected for the group.
Descriptive research is used to describe the characteristics of the study of a population or event.
