扁平化简约风几何图形矢量元素

Low-saturation flat minimalist abstract geometric shape icons for poster decoration on white background, soft muted color palette with maximum two colors per icon, pixel-perfect vector style, overlapping circles in dusty blue and light gray forming abstract composition, intersecting squares with negative space in soft powder blue and cream, triangular prism with shadows in muted sky and off-white, spiral helix in dusty azure and light beige, concentric rings in soft steel blue and cream, fragmented polygon in muted slate and gray, wave line pattern in dusty periwinkle and light gray, dotted grid in soft blue-gray and cream, radiating lines from center in muted cadet blue and sand, nine icons evenly distributed in three rows and three columns, clean geometric shapes with harmonious low-saturation palette, suitable for poster backgrounds and decorative accents, no facial expressions, pure minimalist decorative shapes.