Android 5.0 Map is not defined

This would be a nice little feature to have, Excel users are using this a lot.

Is your feature request related to a problem? Please describe.
I tried to set a dark color and decrease symbol size for BarCanvas legends but changing the configuration didn't affect the chart. I found the cause in the repository, the symbol size and the color are hardcoded in the source code of BarCanvas:
![Képernyőkép erről: 2020-04-24 11-22-18](https://user-images.githubusercontent.com/32

Add a terminal UI for Luckysheet, probably using blessed library: https://github.com/chjj/blessed (if your API is in nodeJS; works, but frozen), or https://github.com/jquast/blessed (if your API can be bound to Python; works, and is actively maintained), or use mighty old ncurses (in C; for the bold...). This would of course use the existing Lu

https://html.spec.whatwg.org/multipage/interaction.html#focus-processing-model

Let candidate be target's top-level browsing context's active document.

This should be

Let candidate be target's browsing context's top-level browsing context's active document.

where the inserted "browsing context" links to #concept-document-bc.