Background color behind the text gets added automatically.

[malaydell]

While making biger flow diagrams, the text gets background color automatically. Refer screenshot attached.

Windows 11,
Google Chrome latest version.
Draw.io - online version.

[draw-io-triage-bot[bot]]

👋 Thank you for opening this issue!

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Summary: The user reports that text labels in their flow diagrams are automatically receiving a background color that they did not intentionally set, particularly noticeable in larger diagrams. This is likely related to the labelBackgroundColor style property being applied automatically.

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💡 Possible Solution Found

We found a potentially relevant solution in a previous issue:

This is likely related to the label background/knockout behavior in draw.io. In issue #4857, it was explained that labels have a 'Label Background Color' style property that can be set. The text background color may be getting set automatically due to the 'labelBackgroundColor' style. You can fix this by selecting the affected labels, going to the Style panel (Edit Style), and removing or setting labelBackgroundColor=none; in the style string. Alternatively, check Format > Text panel and ensure the background color for the label text is set to 'None' or transparent.

📎 Source: #4857

Please check if this addresses your issue. If not, let us know what's different about your situation.

🔍 Possible Related Issues

This issue might be related to existing issues:

🟡 #4857 - Transparent text background that hides shapes
Both issues deal with unexpected or unwanted background color behind text labels. Issue #4857 discusses the labelBackgroundColor behavior where text backgrounds obscure shapes, which could be the same root cause the user is experiencing.

🟡 #3354 - Request: Labels knockout lines, without using background color
Related to label background color behavior on connectors/lines. The user's issue of automatic background color appearing on text in flow diagrams could be connected to how labels on connectors get background colors to improve readability.

Please check if any of these address your issue. If this is a duplicate, we may close this issue and continue the conversation there.

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_{🤖 This is an automated response to help with initial triage. A human maintainer will review this issue. If you've provided all the requested information, no further action is needed - we'll get back to you soon!}

[draw-io-triage-bot[bot]]

👋 Thank you for opening this issue!

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Summary: The user reports that text labels in their flow diagrams are automatically getting a background color that they did not set, particularly when working with larger diagrams. This appears to be a duplicate of issue #5626.

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🔍 Possible Related Issues

This issue might be related to existing issues:

🔴 #5626 - Background color behind the text gets added automatically.
This is an exact duplicate — same title, same bug report about text background color being added automatically.

🟡 #4857 - Transparent text background that hides shapes
Related issue about unexpected text background behavior that obscures other shapes, which may share the same underlying cause.

Please check if any of these address your issue. If this is a duplicate, we may close this issue and continue the conversation there.

📝 Additional Information Needed

To help us investigate this more effectively, could you please provide:

• Steps to reproduce: The user mentions it happens 'while making bigger flow diagrams' but doesn't provide specific steps to reproduce the issue. What specific actions trigger the background color appearing? Does it happen after a certain number of shapes, after zooming, or after a specific edit operation?
• Screenshot or diagram file: The user mentions 'Refer screenshot attached' but no screenshot appears to be included in the issue. A screenshot or exported .drawio file would be very helpful to diagnose the problem.
• Expected vs actual behavior: It would help to clarify whether the background color appears on shape labels, connector labels, or both, and whether this is a rendering artifact or an actual style change persisted in the diagram.

We also have some questions:

• It looks like the screenshot you mentioned didn't attach successfully. Could you re-upload it or share a .drawio file that exhibits the issue?
• Does the background color appear on labels of shapes, connectors (edges), or both?
• If you select the affected text/label and check Format > Style, do you see a labelBackgroundColor or backgroundColor property that you didn't set?
• Does this happen only after the diagram reaches a certain size, or can you reproduce it in a small diagram as well?
• Have you tried toggling off the label background by selecting the label, going to the Text tab in Format panel, and unchecking 'Background Color'?

📋 Bug Report Template

**Environment:**
- draw.io version: [e.g., web app / desktop 24.x.x / Confluence plugin]
- Browser (if web): [e.g., Chrome 120, Firefox 121]
- OS: [e.g., Windows 11, macOS 14, Ubuntu 22.04]

**Steps to Reproduce:**
1. Go to ...
2. Click on ...
3. See error

**Expected Behavior:**
What you expected to happen.

**Actual Behavior:**
What actually happened.

**Screenshots/Files:**
If applicable, add screenshots or attach the .drawio file.

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_{🤖 This is an automated response to help with initial triage. A human maintainer will review this issue. If you've provided all the requested information, no further action is needed - we'll get back to you soon!}