Weekly GitHub Report for Mermaid: October 06, 2025 - October 13, 2025 (12:03:58)
Weekly GitHub Report for Mermaid
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Table of Contents
I. News
1.1 Recent Version Releases:
The current version of this repository is @mermaid-js/parser@0.4.0
1.2 Version Information:
On March 25, 2025, a minor update was released that introduced the addition of a Radar Chart, enhancing the charting capabilities of the platform. This update reflects ongoing efforts to expand visualization options.
II. Issues
2.1 Top 5 Active Issues:
We consider active issues to be issues that that have been commented on most frequently within the last week. Bot comments are omitted.
-
Flowchart:
\before a new line in a string cancels the new line, but is still displayed.: This issue reports that when using a backslash (\) before a new line in a string within Mermaid flowcharts, the backslash is intended to escape the line break but is still visibly displayed, which is incorrect behavior. The user provides a minimal reproducible example and notes that the backslash should not appear in the rendered output when escaping new lines.- The comment offers a potential fix and invites the original poster to test it and provide feedback, indicating an initial step toward resolving the problem.
- Number of comments this week: 1
Since there were fewer than 5 open issues, all of the open issues have been listed above.
2.2 Top 5 Stale Issues:
We consider stale issues to be issues that has had no activity within the last 30 days. The team should work together to get these issues resolved and closed as soon as possible.
- Tooltips for emoji in Diagram Syntax doc tree: This issue addresses the lack of explanatory tooltips for emoji used next to diagram type names in the "Diagram Syntax" section of the documentation, which currently leaves users unclear about the meaning of these icons. The proposal suggests adding tooltips to these emoji to enhance user understanding and improve the clarity of the documentation.
- log scale for
xychart-beta: This issue proposes adding ascalestring field to thexychart-betacomponent that defaults tolinearbut can also acceptlogas an option, enabling logarithmic scaling of charts. This enhancement aims to allow users to version control graph data with true values while displaying the data on a logarithmic scale, with potential for future extension to other scale types. - Unable to Style Sequence Diagram Title: This issue reports a problem with the Mermaid sequence diagram feature where users are unable to change the font size of the diagram title, resulting in titles that appear very small and difficult to read. The user notes that while other Mermaid graph types support title styling attributes, such as those in QuadrantChartConfig, similar functionality is not yet available for sequence diagrams, leading to a reliance on Markdown titles as a workaround.
- SVG rendering formatting issues with markdown input: This issue addresses problems with SVG rendering when nodes in a diagram use markdown formatting, resulting in inconsistent visual output such as added height or text being cut off in the SVG files. Specifically, these formatting issues occur when opening the SVG in a new tab or downloading it from the editor, causing discrepancies between the expected and actual appearance of the diagram.
- Vite build error with mermaid version 10.9.0: This issue describes a problem encountered when building a Vue 3 and Vite application that uses Mermaid version 10.9.0 to render graphs. While the graphs display correctly during development, the build process results in a runtime error related to setting properties on an undefined object, causing the application to fail on startup.
2.3 Open Issues
This section lists, groups, and then summarizes issues that were created within the last week in the repository.
Issues Opened This Week: 7
Summarized Issues:
- Flowchart rendering issues: Mermaid's flowchart rendering has multiple problems including the visible display of backslashes intended to escape new lines and incorrect rendering of markdown combined with math formulas, which appears as plain text. Additionally, including multiple math formulas in a single label causes graph generation to fail without errors due to KaTeX parse issues with multiple dollar signs.
- issues/7045, issues/7046, issues/7047
- Icon syntax enhancement: There is a proposal to add support for material icons syntax in flowchart labels to complement the existing font-awesome syntax, aiming to improve icon usage in Mermaid diagrams.
- issues/7059
- Chart axis and rendering inaccuracies: The Mermaid XY Chart incorrectly positions the zero point on the y-axis too high, causing bars to appear as if they start below zero despite the axis range starting at zero. Similarly, the Gantt graph has rendering issues with tasks measured in hours that start before weekends, leading to improper task stretching and misalignment even when weekends are excluded.
- issues/7061, issues/7062
- Class diagram parser errors: Using inline class annotations such as
<<interface>>in the Mermaid online editor's class diagram feature triggers parser errors, preventing proper class definition. - issues/7065
2.4 Closed Issues
This section lists, groups, and then summarizes issues that were closed within the last week in the repository. This section also links the associated pull requests if applicable.
Issues Closed This Week: 0
Summarized Issues:
As of our latest update, there were no issues closed in the project this week.
2.5 Issue Discussion Insights
This section will analyze the tone and sentiment of discussions within this project's open and closed issues that occurred within the past week. It aims to identify potentially heated exchanges and to maintain a constructive project environment.
Based on our analysis, there are no instances of toxic discussions in the project's open or closed issues from the past week.
III. Pull Requests
3.1 Open Pull Requests
This section provides a summary of pull requests that were opened in the repository over the past week. The top three pull requests with the highest number of commits are highlighted as 'key' pull requests. Other pull requests are grouped based on similar characteristics for easier analysis. Up to 25 pull requests are displayed in this section, while any remaining pull requests beyond this limit are omitted for brevity.
Pull Requests Opened This Week: 8
Key Open Pull Requests
1. Fix markdown labels for flowcharts: This pull request restores the behavior in Mermaid flowcharts where only nodes and edges with labels properly delimited by double-quote-backticks (e.g., node["_markdown_ **text**"]) are processed as markdown, thereby fixing markdown label parsing issues and resolving multiple related GitHub issues.
- URL: pull/7057
- Merged: No
- Associated Commits: dc51c, 40402, 0943e, 560ab, 37269, 44a64, b7b05, 4d76a, ebb77, cd6f7, 3a233, 178ea, fe859, e351a, 13f20, a53c0, 047b7, db4a8, 1f0cb, cd6f7, 1f8ba
2. 6810: Fix tooltip rendering to appear correctly near hovered elements: This pull request fixes the tooltip rendering issue in the Mermaid project by ensuring that tooltips appear correctly near the hovered elements instead of being rendered at the bottom of the page, and also includes escaping HTML in tooltip titles to prevent DOM injection.
- URL: pull/7052
- Merged: No
3. 6853: prevent browser freeze caused by invalid participant name in sequenceDiagram: This pull request addresses and fixes a bug in the sequenceDiagram feature where invalid participant names caused the browser to freeze due to excessive recursion by adding validation to detect incorrect participant syntax and replacing the recursion with a clear console error message.
- URL: pull/7055
- Merged: No
Other Open Pull Requests
- Class diagram enhancements: This set of pull requests improves class diagram functionality by supporting combined
$and*symbols to denote static and abstract attributes or methods, and by updating grammar to allow link statements within namespace blocks. These changes include reorganizing tests for better coverage and addressing issue #4700 to enhance diagram expressiveness. - [pull/7067, pull/7068]
- Flowchart label improvements: These pull requests enhance flowchart labels by enabling material icon rendering through regex replacements and fixing backslash-newline escaping issues to ensure proper line breaks in all label formats. Both features are supported by new tests and changesets to maintain quality and documentation.
- [pull/7060, pull/7050]
- State diagram note positioning fix: This pull request corrects the rendering of notes in state diagrams by ensuring notes appear on the left or right side as intended, rather than incorrectly at the top or bottom. This fix improves the visual accuracy of state diagrams.
- [pull/7063]
3.2 Closed Pull Requests
This section provides a summary of pull requests that were closed in the repository over the past week. The top three pull requests with the highest number of commits are highlighted as 'key' pull requests. Other pull requests are grouped based on similar characteristics for easier analysis. Up to 25 pull requests are displayed in this section, while any remaining pull requests beyond this limit are omitted for brevity.
Pull Requests Closed This Week: 2
Key Closed Pull Requests
1. Pre Release: This pull request addresses the issue of the mermaid-parser not being released due to an incorrect changelog in a previous pull request by adding a changeset file to enable the pre-release process.
- URL: pull/7051
- Merged: Yes
- Associated Commits: 63df7
2. fix: update @argos-ci/cypress to version 6.1.3: This pull request updates the @argos-ci/cypress dependency to version 6.1.3 to ensure the project uses the latest compatible version.
- URL: pull/7054
- Merged: Yes
- Associated Commits: 99f17
3.3 Pull Request Discussion Insights
This section will analyze the tone and sentiment of discussions within this project's open and closed pull requests that occurred within the past week. It aims to identify potentially heated exchanges and to maintain a constructive project environment.
Based on our analysis, there are no instances of toxic discussions in the project's open or closed pull requests from the past week.
IV. Contributors
4.1 Contributors
Active Contributors:
We consider an active contributor in this project to be any contributor who has made at least 1 commit, opened at least 1 issue, created at least 1 pull request, or made more than 2 comments in the last month.
If there are more than 10 active contributors, the list is truncated to the top 10 based on contribution metrics for better clarity.
| Contributor | Commits | Pull Requests | Issues | Comments |
|---|---|---|---|---|
| darshanr0107 | 39 | 9 | 0 | 0 |
| shubhamparikh2704 | 23 | 2 | 0 | 4 |
| jonathanpoelen | 4 | 3 | 21 | 0 |
| omkarht | 14 | 2 | 0 | 2 |
| No author found | 10 | 0 | 0 | 0 |
| y76 | 6 | 1 | 1 | 1 |
| SAMARTHAGARWAL77 | 4 | 2 | 0 | 0 |
| jgreywolf | 4 | 2 | 0 | 0 |
| knsv | 4 | 1 | 0 | 0 |
| sidharthv96 | 5 | 0 | 0 | 0 |