A futuristic workflow interface made of glowing interconnected AI nodes floating in a dark workspace, minimal yet detailed, volumetric lighting, soft blue, cyan and violet neon glow, matte black background, crisp geometric composition, text "NN-custom-nodes" displayed with multi layered 3d font in the foreground, depth of field, cinematic, ultra-sharp, modern open-source software cover art, no people, no text, plenty of negative space for title placement, 16:9, high contrast, professional, digital art