SVG/CSS & Graphviz Tab-focus Testing in Chromium
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Tab-key node (link) focus-switching order, in the SVG output of a Graphviz Dot process, might have needed further planning and testing to appear a little less random than the text labels might do in this test video. However, in this example, Graphviz, FFMPEG and Chromium, in combination, worked well enough to give an indication of how using directed graphs to present animated content and ideas can be done in a fairly pleasant way.
These tools enable information presentation with a minimum of single key-presses, while also enabling things like quick searches of all the displayed text content in the labels, via Ctrl+f and the related search-as-you-type browser function, while keeping some acceptable node-to-node animation.
This means that a graph can have much more content than gets presented in any given session. At the same time its delivery can have a flexibility not always present when content is limited or as easily retrieved as might be the case here.