Plotly

Added
- Add "bold" weight, "italic" style and "small-caps" variant options to fonts [[6956](https://github.com/plotly/plotly.js/pull/6956)]

Fixed
- Fix applying `autotickangles` on axes with `showdividers` as well as cases
where `tickson` is set to "boundaries" [[6967](https://github.com/plotly/plotly.js/pull/6967)],
with thanks to my-tien for the contribution!
- Fix positioning of multi-line axis titles with `standoff` [[6970](https://github.com/plotly/plotly.js/pull/6970)],
with thanks to my-tien for the contribution!

Fixed
- Maintain original drawing order of traces when traces with similar type are sent to back [[6962](https://github.com/plotly/plotly.js/pull/6962)]
- Ensure winning points of hover are listed first when hoversubplots is set to "axis" and sorting by distance [[6963](https://github.com/plotly/plotly.js/pull/6963)]
- Fix duplicated points in splom hover when `hoversubplots` is set to "axis" [[6965](https://github.com/plotly/plotly.js/pull/6965)]

Added
- Add `zorder` attribute to various cartesian traces for controlling stacking order of SVG traces drawn into a subplot [[6918](https://github.com/plotly/plotly.js/pull/6918), [#6953](https://github.com/plotly/plotly.js/pull/6953)],
This feature was anonymously sponsored: thank you to our sponsor!
- Add "between" option to shape layer for placing them above grid lines and below traces [[6927](https://github.com/plotly/plotly.js/pull/6927)],
with thanks to my-tien for the contribution!
- Add "raw" `sizemode` to cone trace [[6938](https://github.com/plotly/plotly.js/pull/6938)]
- Add `layout.hoversubplots` to enable hover effects across multiple cartesian suplots sharing one axis [[6947](https://github.com/plotly/plotly.js/pull/6947), [#6950](https://github.com/plotly/plotly.js/pull/6950)]

Changed
- Regenerate `stackgl_modules/index.js` using updated dependencies [[6937](https://github.com/plotly/plotly.js/pull/6937)]

Fixed
- Fix hover count in parcats trace [[6944](https://github.com/plotly/plotly.js/pull/6944)],
with thanks to weiweikee for the contribution!

Fixed
- Fix centering multi-line headers for treemap traces [[6923](https://github.com/plotly/plotly.js/pull/6923)]
- Fix heatmap text color and `texttemplate` on cells with missing data [[6924](https://github.com/plotly/plotly.js/pull/6924)]
- Fix scattergl rendering when colors include capital letters [[6928](https://github.com/plotly/plotly.js/pull/6928)],
with thanks to 28raining and dy for the contribution!

Added
- Add fill gradients for scatter traces [[6905](https://github.com/plotly/plotly.js/pull/6905)],
with thanks to lumip for the contribution!
- Add `indentation` to legend [[6874](https://github.com/plotly/plotly.js/pull/6874)],
with thanks to my-tien for the contribution!

Fixed
- Fix tooltip pointer position [[6901](https://github.com/plotly/plotly.js/pull/6901)],
with thanks to OBe95 for the contribution!
- Fix standoff position [[6889](https://github.com/plotly/plotly.js/pull/6889), [#6914](https://github.com/plotly/plotly.js/pull/6914)],
with thanks to ayjayt for the contribution!
- Fix resizing `pie` and `funnelarea` traces when textinfo is set to "none" [[6893](https://github.com/plotly/plotly.js/pull/6893)],
with thanks to robbtraister for the contribution!
- Fix `insiderange` on category axes [[6910](https://github.com/plotly/plotly.js/pull/6910)]
- Fix display of "boundaries" `tickson` when `tickmode` is set to "array" [[6912](https://github.com/plotly/plotly.js/pull/6912)]

Fixed
- Fix bug where plots with axis `type='categorical'`, `tickson = "boundaries"` and `showgrid=true` wouldn't load [[6885](https://github.com/plotly/plotly.js/pull/6885)]
- Respect `insiderange` when multiple overlaid axes having `insideticklabel` [[6817](https://github.com/plotly/plotly.js/pull/6817)]