sacc1 opened a new issue, #43862: URL: https://github.com/apache/superset/issues/43862
### Bug description We are experiencing a graphical rendering issue with a Treemap chart in Apache Superset. Some of the Treemap tiles display an unexpected thin vertical white/light line inside the colored area. The line appears as an internal separator even though the tile should have a continuous background. The issue can be clearly seen, for example, in the tiles: Arte Contemporanea Architettura I have attached a screenshot where the issue is highlighted with red arrows. Expected behaviour Each Treemap tile should be rendered as a continuous colored rectangle, without internal separator lines unless they correspond to an actual hierarchy/subcategory. Actual behaviour A thin vertical white line is rendered inside some tiles, visually splitting the rectangle and affecting the readability and appearance of the chart. The issue appears to be related to the graphical rendering of the Treemap rather than to the data itself. Could you please check whether this is a known issue with the Treemap visualization and whether it can be fixed or avoided through the chart configuration? ### Screenshots/recordings <img width="791" height="435" alt="Image" src="https://github.com/user-attachments/assets/f4de4d10-a91b-4c39-8867-8664c47c4ef8"; /> ### Superset version master / latest-dev ### Python version 3.11 ### Node version 16 ### Browser Chrome ### Additional context _No response_ ### Checklist - [x] I have searched Superset docs and Slack and didn't find a solution to my problem. - [x] I have searched the GitHub issue tracker and didn't find a similar bug report. - [x] I have checked Superset's logs for errors and if I found a relevant Python stacktrace, I included it here as text in the "additional context" section. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
