Merge pull request nicgirault#65 from nicgirault/upgrading-dev-depend…

…encies

🔧 upgrade dev dependencies

add event handling

allow direct import fix nicgirault#29

add radius conf for chords

Merge pull request nicgirault#22 from nicgirault/v2

V2

Merge pull request nicgirault#15 from nicgirault/tooltip

Tooltip

fix chords bug

fix rendering

render backgrounds

add opacity to axes