Description

With labels being contained in the sections of pie charts, visibility is lost with the smallest sectors (purple in image below)

Sample map is
https://dev-mapstore.geosolutionsgroup.com/mapstore/#/viewer/openlayers/37496

Investigate on the possibility to better manage labels inside the charts somehow.

What kind of improvement you want to add? (check one with "x", remove the others)

• Minor changes to existing features
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

Other useful information