fix: Correct histogram2dcontour fill colors for negative bin values - #8088

fix: Correct histogram2dcontour fill colors for negative bin values#8088

jamalkamaladdin wants to merge 2 commits into

plotly:mainplotly/plotly.js:mainfrom

jamalkamaladdin:fix/8005-histogram2dcontour-negative-filljamalkamaladdin/plotly.js:fix/8005-histogram2dcontour-negative-fillCopy head branch name to clipboard