a black jagged circular outline is centered on a plain white background, resembling a gear-like badge or irregular seal with no fill inside. - 響應式網頁設計 幅插畫檔、美工圖案、卡通及圖標
blue circular halftone pattern on a smooth gradient background transitioning from light to dark blue. - 響應式網頁設計 幅插畫檔、美工圖案、卡通及圖標
orange wavy contour lines radiate outward from a small white center, forming a concentric decorative pattern on a light background. - 響應式網頁設計 幅插畫檔、美工圖案、卡通及圖標
white hexagonal pattern with subtle raised cells and soft shading across a clean, minimal surface. - 響應式網頁設計 幅插畫檔、美工圖案、卡通及圖標
a white geometric fractal border forms a square-like frame with intricate repeating edges, centered on a plain white background and outlined in light gray. - 響應式網頁設計 幅插畫檔、美工圖案、卡通及圖標
a repeating geometric lattice pattern of thin gray lines forms a uniform honeycomb-like grid across a bright white background. - 響應式網頁設計 幅插畫檔、美工圖案、卡通及圖標
clean white background with thin blue and yellow circuit-like lines and small circular nodes arranged in a geometric, technical pattern. - 響應式網頁設計 幅插畫檔、美工圖案、卡通及圖標
dark blue background with a centered geometric hexagonal line pattern forming a layered frame around an empty middle space. - 響應式網頁設計 幅插畫檔、美工圖案、卡通及圖標
blue gradient background with glowing white center and dotted pixel pattern fading toward the edges. - 響應式網頁設計 幅插畫檔、美工圖案、卡通及圖標
