Most sports apps usually have a strong sense of "sports" in terms of UI: they usually use bold black or gray in a large area, and in terms of color, they usually use brighter and more energetic colors. The overall highlight is the sense of strength and vitality; In the aspect of picture collocation, the sense of strength and vitality is often highlighted. I like to use some pictures full of strong vitality or explosive force, or some pictures with intense muscles, with darker and darker background, or bright and vibrant color background.

Keep's UI, with pictures, often uses fitness pictures, but rarely has the power of that hormone. There is some sense of movement, such as the gray of the main color. My eyes tell me that it looks blue-gray, but when I put it in a sketch or PS, I will find that it is actually purple-gray, and purple is between cool and warm colors. In addition, the color itself is darker and darker. On the whole, there is a certain sense of strength in it, which slightly fits the theme of sports. If it is blue, it will give people a cold or cool feeling, and the sense of strength will be weaker.