please use a proper FOSS code editor:
notepad2, notepad++, sublime text 3, visual studio code, lighttable ...

NOTE optimized for firefox

print settings

* page format: DIN A4 landscape
* duplex on + flip on short edge
* scale 100%, no margins, disable "fit to printable area"

TODO sync colors: map, eight_colors
TODO build a noscript version (jsdom + outerHTML?)

TODO generate simple SVG graphs dynamically with javascript
FIXME fix pixelated/blurry svg background patterns in chrome -> render lines without pattern

TODO move text to start + style/script to end of file? currently text starts around line 1500
or outsource script and style -> outsourcing script breaks file protocol in browser

TODO leave white space on every pages, so readers can add hand-written comments. split pages in upper + lower half

TODO export/import all text nodes for auto translation (google translate)
-> remove html markup, make a large list of text nodes,
so the list format is preserved by the auto translator,
them import the text list back into our xml node format
