Work in progress

Inspired by mix snow with two droste steps and the desire to develop scripts for reusable widgets. With a bit undressing the same script(s) could replace current pages:

• stitches: only stitches gallery; step values zero and hidden.
• droste: only stitches gallery; step values adjustable but the same for both diagrams, perhaps show a single step field outside the diagram captions.

Usage: see sources for .md and .html. Note the different locations of the scripts, mark down front matter expects them in docs/js.

TO DO:

• Apply to all (apply to ignored only for step-0)
• Beep on invalid input (tweak, spinners, specs). When pasting a URL in the first specifications field: strip until question mark.
• Update sidebar subjects