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James Koster

Designer at Automattic

@jameskoster UK joined Aug 2009

jameskoster.design github.com/jameskoster Slack: @jameskoster
    Teams Design

    Bio

    Designer @ Automattic.

    Interests

    Horticulture, Espresso, Exercise, Art, Tech, Pizza

    WordPress Origin Story

    Discovered WordPress when building Quake III: Arena clan websites for friends back in the noughties.

    Badges

    CODE
    5 badges
    C Core AI Contributor '26 Core Contributor '19 Core Team '23 Plugin Developer Theme Developer

    Current Job

    Designer
    Present
    Automattic

    Recent impact

    Score weights high-impact work (commits, releases, approved translations, props) at 3x routine activity.

    Last 30 days
    45contributions
    high19
    medium26
    score83
    Last 90 days
    81contributions
    high30
    medium51
    score141
    Last 12 months
    219contributions
    high56
    medium163
    score331

    Team focus

    Across 1 team, with no team-attributable contributions in the last 365 days

    WordPress releases

    Contributed to 18 releases
    • 7.0
    • 6.9
    • 6.8
    • 6.7
    • 6.6
    • 6.5
    • 6.4
    • 6.3
    • 6.2
    • 6.1
    • 6.0
    • 5.9
    • 5.8
    • 5.7
    • 5.6
    • 5.5
    • 5.4
    • 5.3

    Time commitment

    10 hours per week of sponsored contribution time

    Contributions

    Type
    June 2026
    Jun 10 Wed · 14:48
    Core med
    Created issue #79089 in the WordPress/gutenberg repository:
    `@wordpress/ui`: Unify the opacity (fade) transition pattern across overlay components
    Jun 10 Wed · 14:02
    Core med
    Created issue #79088 in the WordPress/gutenberg repository:
    Adopt the new `size` design tokens (`--wpds-dimension-size-*`)
    Jun 10 Wed · 10:48
    Core high
    Merged pull request #79032 into WordPress/gutenberg:
    Theme: Add Figma scopes to element size tokens
    Jun 09 Tue · 08:20
    Core med
    Submitted pull request #79032 to WordPress/gutenberg:
    Theme: Add Figma scopes to element size tokens
    Jun 08 Mon · 15:35
    Core high
    Merged pull request #76545 into WordPress/gutenberg:
    Theme package: Add element size design tokens
    Jun 08 Mon · 14:05
    Core high
    Merged pull request #78983 into WordPress/gutenberg:
    Tooltip: Use md border radius for portaled popups.
    Jun 08 Mon · 11:02
    Core high
    Merged pull request #77599 into WordPress/gutenberg:
    Theme: Increase stroke1 contrast target to 2.9
    Jun 05 Fri · 14:46
    Core med
    Submitted pull request #78983 to WordPress/gutenberg:
    Tooltip: Use md border radius for portaled popups.
    Jun 05 Fri · 12:12
    Core high
    Pull request #78979 merged into WordPress/gutenberg:
    Storybook: Declare workspace dependencies for theme example story
    Jun 05 Fri · 11:37
    Core med
    Submitted pull request #78979 to WordPress/gutenberg:
    Storybook: Declare workspace dependencies for theme example story

    Developer

    Contributor

    Plugins

    Themes