Command line scripts to style, raster and compose (overlay) Scalable Vector Graphics.

Change SVG files color

python svg_style_updater.py -i SVG_DIR -o OUTPUT_DIR --color red

--color accepted formats: "red" (color names list), "#FF0000", "#F00", "rgb(255, 0, 0)".

--match specifies a color to replace.

--rules applies a list of "match/set" rules to update any SVG style attribute (stroke-width, opacity...). Rules are described with a JSON file:

[
   {
       "match":"fill:none",
       "set":"fill:#ff0000;fill-opacity:0.5",
       "name":"Replace black or empty with semi-transparent red."
   },
   {
       "match":"fill:#00ffff",
       "set":"fill:#ff00ff;stroke:#00ff00;stroke-opacity:1;stroke-width:25;",
       "name":"Replace cyan with magenta, and add a green stroke."
   }
]

Raster SVG files to PNG

python svg_to_png.py -i SVG_DIR -o OUTPUT_DIR --width 92

This looks for the available renderers, deals with densities and performs command line calls.

--density specifies reference density and rasters files to all listed densities. It was intended to output Android assets multiple resolutions.

--renderer forces the use of a specific renderer. ImageMagick is faster, but Inkscape (default) has a better support of SVG standard.

Compose multiple images over a same background

python compose_bitmap.py --background BACKGROUND_BITMAP -i OVERLAYS_DIR -o OUTPUT_DIR

For now, it works only with bitmaps. A nice improvement would be to handle SVG composition.

Further: Interesting SVG tools.