This is a pre-owned residence renovation planning project. Through the designer's resourceful planning, the dark color scheme has been set as the primary spatial focus. Moreover, the deployment of a calm and restrained tone reflected the stability of the homeowner's character. In addition, the designer has thoughtfully chosen electronically controlled glass as the partition material, which can be switched between transparent and white foggy mode, allowing the homeowner to control the effect of brightness or shading according to the dwellers’ needs.