Increase color lightness (of "other" nodes) instead of opacity, when mousing-over a node

[polochau]

Currently, when user mouse-over a node, all opacity of other nodes (that aren't mouse-overed) is reduced, allowing the edges behind them to show throw and can look visually overwhelming.
Possible solution is to increase color lightness (e.g., by first getting the HSL color space representation of a node's color, and then increasing the "L" value). See attached image for how example lighter node colors.

[polochau]

HCL color space will be better, if it's available https://hclwizard.org/why-hcl/