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Auto generate app icons and splash screens at different resolutions from a source SVG
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LogoGen is a tool designed to help quickly convert an SVG logo to the myriad of resolutions required for modern mobile apps, especially when targeting multiple platforms (e.g. when using frameworks like Cordova and Xamarin).

LogoGen consists of a core .Net class library that can be used in your code directly, a console app on top to help automation, and a wpf GUI for making it simpler to use.

The Class Library

To create and individual image, use LogoGenerator.Generate():

var bitmap = new LogoGenerator().Generate(new LogoSettings(
    svgPath: "C:\\Temp\\logo.svg",      // the source SVG
    width: 1280,                        // target PNG width
    height: 720,                        // target PNG height
    scale: 0.6f,                        // scale down factor for the source
    backgroundColor: Color.White,       // background color (can be transparent)
    backgroundImage: "C:\\Temp\\backg.png", // background image (optional) 
    saveOutputFile: true,               // Set to true if the result should be exported to file
    outputPath: "C:\\Temp\\target.png", // Only used if SaveOutputFile is true
    outputBitDepth: BitDepth.Rgb24      // Bit depth of the output. It can be 16, 24 or 32 bit

To create a batch of images, use LogoGenerator.GenerateBatch():

var itemSettings = new[] {
    new BatchItemSettings(1024, 768, "C:\\Temp\\splash1.png"),
    new BatchItemSettings(1920, 1080, "C:\\Temp\\splash2.png"),
    new BatchItemSettings(100, 100, "C:\\Temp\\icon1.png", 1.0f, Color.Transparent),
    new BatchItemSettings(192, 192, "C:\\Temp\\icon2.png", 1.0f, Color.Transparent)

var batchSettings = new BatchSettings(
    svgPath: "C:\\Temp\\logo.svg",
    scale: 0.6f,
    backgroundColor: Color.White,
    backgroundImage: "C:\\Temp\\backg.png",
    itemSettings: itemSettings,
    saveOutputFiles: true,
    outputBitDepth: BitDepth.Rgb24);

var batchResults = new LogoGenerator().GenerateBatch(batchSettings);

The batch uses a single SVG and has default Scale and Background Color for the entire batch. For each item in the batch you need to specify the target PNG path and width/height, however you can optionally specify an override for the scale and color if you want.

The result is a collection of objects with a Bitmap, a Succeeded flag, and an Exception (if any occurred) per item.

The Console Application

The console is a very thin wrapper for the batch generator above:

C:\LogoGen\bin>LogoGen.Console.exe "C:\Temp\BatchSettings.json"

The settings file is just a JSON represenation of the BatchSettings object:

    "svgPath": "C:\\Temp\\logo.svg",
    "scale": 0.6,
    "backgroundColor": "100, 255, 255, 255",
    "backgroundImage": "C:\\Temp\\backg.png",
    "saveOutputFiles": true,
    "outputBitDepth": 1,
    "itemSettings": [
        "width": 1024,
        "height": 768,
        "outputPath": "C:\\Temp\\splash1.png"
        "width": 192,
        "height": 192,
        "outputPath": "C:\\Temp\\icon1.png",
        "scale": 1.0,
        "backgroundColor": "Transparent"


The UI is still very much work in progress, but is essentially a user friendly way of generating the setting JSON. The diagram below helps clarify the purpose of various controls:

LogoGen GUI

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