mozilla/gecko-dev
Jun 2025 – Jul 2025
2 Months active
Languages Used
CSSHTMLJavaScript
Technical Skills
CSSCSS LayoutCSS Pseudo-elementsCSS Text DecorationFront End DevelopmentInternationalization
Koji Ishii
PROFILE
Koji Ishii
Kojii contributed to mozilla/gecko-dev by expanding Web Platform Test coverage and improving CSS rendering conformance. Over two months, Kojii developed and maintained tests for CSS text properties, such as text-autospace, text-spacing, and text-decoration, and addressed edge cases in ::first-line rendering. Using JavaScript, CSS, and HTML, Kojii implemented initial-value and conditional support tests, enhanced regression detection, and stabilized font rendering by reverting synthetic bold/italic decisions. The work also aligned list item default styling with the HTML specification, including quirks-mode compatibility behind a runtime flag. These efforts deepened test reliability and ensured cross-platform rendering consistency.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
11Total
Bugs
1
Commits
11
Features
3
Lines of code
423
Activity Months2
Your Network
812 people
Work History
July 2025
4 Commits • 2 Features
Jul 1, 2025July 2025 performance summary for mozilla/gecko-dev: Strengthened web platform conformance and test reliability. Key work includes adding CSS tests for text-decoration-thickness (ensuring the child decoration thickness is used) and updating text-autospace tests to initial value no-autospace per CSS Working Group guidance; reverting synthetic bold/italic font rendering decisions to stabilize rendering across platforms; and aligning list item default styling with HTML specification with quirks-mode compatibility behind a runtime flag (ListStylePositionQuirkStandard). These changes improve spec conformance, reduce regressions in rendering and layout, and enhance the maintainability of the test suite. Technologies involved include Web Platform Tests (WPT), CSS/HTML spec alignment, test harness usage, and runtime-flag-backed features.
4 Commits • 2 Features
Jul 1, 2025July 2025 performance summary for mozilla/gecko-dev: Strengthened web platform conformance and test reliability. Key work includes adding CSS tests for text-decoration-thickness (ensuring the child decoration thickness is used) and updating text-autospace tests to initial value no-autospace per CSS Working Group guidance; reverting synthetic bold/italic font rendering decisions to stabilize rendering across platforms; and aligning list item default styling with HTML specification with quirks-mode compatibility behind a runtime flag (ListStylePositionQuirkStandard). These changes improve spec conformance, reduce regressions in rendering and layout, and enhance the maintainability of the test suite. Technologies involved include Web Platform Tests (WPT), CSS/HTML spec alignment, test harness usage, and runtime-flag-backed features.
July 2025
June 2025
7 Commits • 1 Features
Jun 1, 2025June 2025 periodic summary for mozilla/gecko-dev focused on strengthening Web Platform Tests (WPT) coverage for CSS text rendering, with emphasis on text properties and ::first-line rendering. The work delivered concrete test coverage and regression-detection improvements that support faster, safer releases.
June 2025
7 Commits • 1 Features
Jun 1, 2025June 2025 periodic summary for mozilla/gecko-dev focused on strengthening Web Platform Tests (WPT) coverage for CSS text rendering, with emphasis on text properties and ::first-line rendering. The work delivered concrete test coverage and regression-detection improvements that support faster, safer releases.
Activity
Loading activity data...
Quality Metrics
Correctness96.4%
Maintainability96.4%
Architecture90.8%
Performance90.8%
AI Usage20.0%
Skills & Technologies
Programming Languages
CSSHTMLJavaScript
Technical Skills
Browser RenderingCSSCSS Font LoadingCSS LayoutCSS Pseudo-elementsCSS Text DecorationFront End DevelopmentInternationalizationJavaScriptRevertTestingWeb DevelopmentWeb Platform TestingWeb Standards
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline