The basic principles of contemporary  interior lighting design  --the principles that Sunmory follows! Compared. Contrast is the basic shaping technique of art design. Comparing two different things, shapes, colors, etc. is called contrast. Harmonious. Harmony implies harmony. On the premise of meeting the functional requirements, it makes the combination of shape, color, light, and quality of various indoor objects harmonized and becomes a very harmonious and unified whole. Symmetry. Symmetry is a traditional technique of formal beauty, and it is the earliest law of formal beauty that mankind has mastered. Symmetry is divided into absolute symmetry and relative symmetry. Levels. A decorative composition, must distinguish the levels so that the picture has depth, breadth, and richness. The lack of hierarchy makes me feel mediocre, and interior design also needs to pursue a sense of spatial hierarchy. Echo. Echoes are like shapes and shadows. In the interior design, the ceiling and