Fusion Key 128x128

Implement only these approved requirements: - Register five separate inert ordinary items: fusion_key_128x128, fusion_key_64x64, fusion_key_48x48, fusion_key_32x32, and fusion_key_16x16. Each item has a unique visual design and its requested pixel dimensions: 128x128, 64x64, 48x48, 32x32, and 16x16 respectively. - Create the fusion_key_128x128 texture: Unique fusion key item icon designed at 128x128 pixels, with a large futuristic key silhouette, glowing cyan energy core, metallic dark-gray body, and distinct circuit details. - Create the fusion_key_64x64 texture: Unique fusion key item icon designed at 64x64 pixels, with a compact futuristic key silhouette, glowing violet energy crystal, silver body, and a visibly different tooth and circuitry arrangement from the other fusion keys. - Create the fusion_key_48x48 texture: Unique fusion key item icon designed at 48x48 pixels, with a triangular fusion-energy key head, amber glow, bronze metallic body, and a distinct key-bit shape. - Create the fusion_key_32x32 texture: Unique fusion key item icon designed at 32x32 pixels, with a small angular sci-fi key shape, green fusion-energy center, gunmetal body, and a distinct notched key-bit pattern. - Create the fusion_key_16x16 texture: Unique fusion key item icon designed at 16x16 pixels, with a simple readable miniature futuristic key silhouette, red fusion-energy accent, dark metal body, and a distinct tooth arrangement.