+# Create applications icons
+
+`svg_to_icons` creates icons for Android, iOS and the stores from an SVG file.
+The icons are generated with the formats and minimum file structure expected by the target platform.
+This tools works especially well with _app.nit_.
+
+## Variations
+
+The `--android` option generates the folders drawable-hdpi, drawable-xhdpi, etc. with the corresponding icon within.
+
+The `--ios` option generates many different icon formats for different iOS devices,
+along with the `Contents.json` file as expected by Xcode.
+
+## Usage examples
+
+See the portable applications at `contrib/tnitter` and `examples/calculator` for practical usages of this tool.
+
+# Create game sprites and a module to load them
+
+`svg_to_png_and_nit` prepares sprite assets for Nit applications from a single SVG file.
+It selects the objects to extract from the SVG file when their id begins with `0`.
+
+It produces two files: