The idea share the same goals with svg design. easily adapt on various screen size while maintain the image quality. inkscape and friends has decent support to

The idea share the same goals with svg design. easily adapt on various screen size while maintain the image quality. inkscape and friends has decent support to svg. html and css layouting are the simple things. you can export it as single html files to read it offline. just open a browser. the layout and responsiveness simply maintained. no need to install new apps and trapped into apk hells.