--- name: design-assets description: "Create and edit graphic design assets: icons, favicons, images, and color systems." --- # design-assets Create and edit graphic design assets: icons, favicons, images, and color systems. ## Tool Selection | Task | Tool | Why | |------|------|-----| | AI image generation | nano-banana-pro | Generate images from text prompts | | Image resize/convert | sips | macOS native, fast, no deps | | Advanced manipulation | ImageMagick | Compositing, effects, batch processing | | Icons & logos | SVG | Scalable, small file size, editable | | Screenshots | screencapture | macOS native | ## App Icon Generation Generate all required sizes from a single 1024x1024 source icon. ### iOS / macOS Icon Sizes ```bash #!/bin/bash # generate-app-icons.sh SOURCE="$1" OUTDIR="${2:-.}" mkdir -p "$OUTDIR" SIZES=(16 20 29 32 40 48 58 60 64 76 80 87 120 128 152 167 180 256 512 1024) for SIZE in "${SIZES[@]}"; do sips -z $SIZE $SIZE "$SOURCE" --out "$OUTDIR/icon-${SIZE}x${SIZE}.png" 2>/dev/null done echo "Generated ${#SIZES[@]} icon sizes in $OUTDIR" ``` ### Android Icon Sizes ```bash # Android adaptive icon sizes declare -A ANDROID_SIZES=( ["mdpi"]=48 ["hdpi"]=72 ["xhdpi"]=96 ["xxhdpi"]=144 ["xxxhdpi"]=192 ) for DENSITY in "${!ANDROID_SIZES[@]}"; do SIZE=${ANDROID_SIZES[$DENSITY]} mkdir -p "res/mipmap-$DENSITY" sips -z $SIZE $SIZE "$SOURCE" --out "res/mipmap-$DENSITY/ic_launcher.png" done ``` ## Favicon Generation ```bash #!/bin/bash # generate-favicons.sh SOURCE="$1" OUTDIR="${2:-.}" mkdir -p "$OUTDIR" # Standard web favicons sips -z 16 16 "$SOURCE" --out "$OUTDIR/favicon-16x16.png" sips -z 32 32 "$SOURCE" --out "$OUTDIR/favicon-32x32.png" sips -z 180 180 "$SOURCE" --out "$OUTDIR/apple-touch-icon.png" sips -z 192 192 "$SOURCE" --out "$OUTDIR/android-chrome-192x192.png" sips -z 512 512 "$SOURCE" --out "$OUTDIR/android-chrome-512x512.png" # ICO file (requires ImageMagick) magick "$OUTDIR/favicon-16x16.png" "$OUTDIR/favicon-32x32.png" "$OUTDIR/favicon.ico" echo "Favicons generated in $OUTDIR" ``` ### HTML Meta Tags ```html ``` ### site.webmanifest ```json { "name": "My App", "short_name": "App", "icons": [ { "src": "/android-chrome-192x192.png", "sizes": "192x192", "type": "image/png" }, { "src": "/android-chrome-512x512.png", "sizes": "512x512", "type": "image/png" } ], "theme_color": "#ffffff", "background_color": "#ffffff", "display": "standalone" } ``` ## Color Palette Generator Given a primary color, generate a full palette: ```javascript // HSL-based palette generation function generatePalette(hue, saturation = 70) { return { 50: `hsl(${hue}, ${saturation}%, 97%)`, 100: `hsl(${hue}, ${saturation}%, 94%)`, 200: `hsl(${hue}, ${saturation}%, 86%)`, 300: `hsl(${hue}, ${saturation}%, 74%)`, 400: `hsl(${hue}, ${saturation}%, 62%)`, 500: `hsl(${hue}, ${saturation}%, 50%)`, // Primary 600: `hsl(${hue}, ${saturation}%, 42%)`, 700: `hsl(${hue}, ${saturation}%, 34%)`, 800: `hsl(${hue}, ${saturation}%, 26%)`, 900: `hsl(${hue}, ${saturation}%, 18%)`, 950: `hsl(${hue}, ${saturation}%, 10%)`, }; } ``` ## ImageMagick Quick Reference ```bash # Resize magick input.png -resize 800x600 output.png # Convert format magick input.png output.webp # Add border magick input.png -border 10 -bordercolor "#333" output.png # Round corners (with transparency) magick input.png \( +clone -alpha extract -draw "roundrectangle 0,0,%[w],%[h],20,20" \) -alpha off -compose CopyOpacity -composite output.png # Composite / overlay magick base.png overlay.png -gravity center -composite output.png # Batch resize all PNGs magick mogrify -resize 50% *.png # Create solid color image magick -size 1200x630 xc:"#1a1a2e" output.png # Add text to image magick input.png -gravity south -pointsize 24 -fill white -annotate +0+20 "Caption" output.png ``` ## sips Quick Reference (macOS) ```bash # Resize (maintain aspect ratio) sips --resampleWidth 800 input.png --out output.png # Exact resize sips -z 600 800 input.png --out output.png # Convert format sips -s format jpeg input.png --out output.jpg # Get image info sips -g all input.png # Rotate sips --rotate 90 input.png --out output.png ``` --- Source attribution: modbender Original project: https://github.com/modbender/skill-library-mcp/blob/d9c8fe903b5b4e82237dbe8d0df8567783022e18/data/design-assets/SKILL.md License: MIT License information: https://opensource.org/license/mit Original upstream instructions; downloaded from Mega AI Hub. ## Upstream license notice MIT License Copyright (c) 2025 skill-library-mcp contributors Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # Mega AI Hub resource metadata Creator / publisher: modbender Original project: https://github.com/modbender/skill-library-mcp/blob/d9c8fe903b5b4e82237dbe8d0df8567783022e18/data/design-assets/SKILL.md Attribution basis: Source repository record Fields of work: Design Roles: Graphic Designer, Product Designer, UX Designer Specialties: Design Tools: ImageMagick Country applicability: Country not specified Classification basis: Source catalog labels Instruction SHA-256: 7454d88a14629280a69fb9572d44ef353e71f7c01b599a84c32aab207d64f8be