Design a 2D conceptual urban diagram using black, white, and yellow to illustrate the relationship between urban expansion and the respect for "conditions of nature." Central Concept: The diagram should visually represent the idea that as a city expands, there is a decreasing respect or integration of natural conditions within the urban environment. Elements to Include: City Expansion: Use black for the urban areas and expanding city boundaries. Represent growth with concentric circles, expanding grids, or radiating lines in black. Natural Conditions: Depict natural elements (e.g., green spaces, water bodies, wildlife habitats) using yellow. This will contrast with the urban elements and draw attention to areas where nature is present or being encroached upon. Contrast and Interaction: Show how natural conditions (yellow) are progressively encroached upon or diminished as the city grows. Use white to highlight diminishing natural areas or create visual breaks between the expanding urban areas and the natural elements. Visual Style: Keep the design minimalistic and clean to emphasize the conceptual nature of the diagram. Use yellow sparingly to ensure it stands out against the black and white elements, focusing on key natural areas or critical points of interaction. Incorporate white space to balance the diagram and enhance readability, using it to highlight the transition or contrast between urban expansion and natural preservation--niji 6--style raw