mermaid-js/mermaid
Mar 2026 – Apr 2026
2 Months active
Languages Used
JavaScriptMarkdownTypeScriptYAML
Technical Skills
CSSCypressD3.jsHTMLJavaScriptSVG rendering
Ladislav Gazo
PROFILE
Ladislav Gazo
Worked on the mermaid-js/mermaid repository to enhance Event Modeling diagram rendering, accessibility, and security. Delivered features that introduced theme-variable colors, improved diagram padding, and scoped arrow markers using JavaScript, TypeScript, and D3.js. Implemented accessibility improvements by enabling titles and ARIA attributes, and strengthened security by sanitizing user input to prevent XSS vulnerabilities. Expanded Cypress end-to-end and unit test coverage to raise release confidence and reduce visualization risk. Addressed a rendering bug by refining type handling and render-detection logic, which improved diagram stability and reduced user-reported issues. Maintained backward compatibility and focused on reliable, accessible diagramming experiences.
Overall Statistics
Feature vs Bugs
60%Features
Repository Contributions
14Total
Bugs
2
Commits
14
Features
3
Lines of code
202,217
Activity Months2
Your Network
118 peopleWork History
April 2026
1 Commits
Apr 1, 2026April 2026: Targeted bug fix in mermaid-js/mermaid to stabilize diagram rendering and improve reliability for end users.
1 Commits
Apr 1, 2026April 2026: Targeted bug fix in mermaid-js/mermaid to stabilize diagram rendering and improve reliability for end users.
April 2026
March 2026
13 Commits • 3 Features
Mar 1, 2026March 2026: Mermaid Event Modeling diagrams delivered substantial enhancements across rendering, theming, accessibility, security, and testing. Key outcomes include improved rendering with theme-variable colors and padding, accessibility titles and attributes via populateCommonDb, XSS protections by sanitizing user input, and expanded test coverage with Cypress E2E tests and fixture/unit updates. These changes reduce risk in visualization quality, improve UX for accessible content, and raise release confidence through stronger quality gates.
March 2026
13 Commits • 3 Features
Mar 1, 2026March 2026: Mermaid Event Modeling diagrams delivered substantial enhancements across rendering, theming, accessibility, security, and testing. Key outcomes include improved rendering with theme-variable colors and padding, accessibility titles and attributes via populateCommonDb, XSS protections by sanitizing user input, and expanded test coverage with Cypress E2E tests and fixture/unit updates. These changes reduce risk in visualization quality, improve UX for accessible content, and raise release confidence through stronger quality gates.
Activity
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Quality Metrics
Correctness94.2%
Maintainability90.0%
Architecture88.6%
Performance88.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
JavaScriptMarkdownTypeScriptYAML
Technical Skills
CSSCypressD3.jsHTMLJavaScriptSVG renderingTypeScriptaccessibilityconfiguration managementdiagrammingdocumentation managementevent modelingfront end developmentfull stack developmentparser development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline