Dark background with subtle gridlines, a blue glow from the top left, and intersecting blue and green geometric lines at the bottom.

Create a modern, dark background image suitable for an Excel dashboard template. Primary colors: deep blue and black with neon blue and neon green accents. Include subtle textures with 15–25% transparency overlay across the entire surface. The top half should be calm and unobtrusive, providing space for charts; the bottom half features a discreet abstract pattern using fine lines or geometric shapes. Add subtle gridlines and a gentle vignette toward the edges. Light should come from the top-left. Add a soft depth effect with gentle shadows. Resolution: 1920x1080. File format: PNG or JPEG. The image should be unobtrusive, with no text or logos. It will be used as a background/template; diagrams and data will be added in Excel. The pattern should be seamlessly tileable in both horizontal and vertical directions, with seamless transitions and no visible edges or gaps. Ensure no diagrams or data are present in the image. Mehr sehen