Cloud9 and JetBrains have been working together on projects that connect software development and esports, from the Sky’s The Limit hackathon to custom tools built for live events, podcasts, and team content.
One of the latest results of this collaboration is Cloud9 JetStream, a custom theme for JetBrains IDEs.
The theme brings Cloud9’s visual identity into the development environment, using a dark interface, Cloud9 blue accents, and carefully tuned syntax highlighting. It was designed to feel familiar to Cloud9 fans while remaining practical for everyday coding.
A theme built for JetBrains IDEs
Cloud9 JetStream is built for developers who want a clean, branded editor setup without changing how they work.
The theme uses a dark base with high-contrast interface elements to keep the editor readable across longer sessions. Cloud9 blue is used throughout the interface for active states, selections, and key accents, while syntax colors are kept clear and functional.
The goal was simple: create a theme that looks like Cloud9, works well inside JetBrains IDEs, and feels comfortable as a daily development environment.
Part of a broader technical collaboration
The theme is one part of the wider Cloud9 x JetBrains partnership.
Over the last several months, Cloud9 has used JetBrains IDEs and AI Coding Agent Junie to create a range of custom tools and experiences, including:
- An aim trainer used at AWS re:Invent.
- VCT and LCS player picker tools for Cloud9 podcast segments.
- A League of Legends skin ranking tool.
- A 3D League of Legends data visualization tool.
- Projects developed through the Sky’s The Limit Cloud9 x JetBrains Hackathon.
These projects showed how development tools can support esports content, fan activations, and internal experimentation. Cloud9 JetStream brings the collaboration back into the IDE itself.
Designed for developers and Cloud9 fans
Cloud9 JetStream is intended for anyone who wants a focused dark theme with a recognizable Cloud9 look.
For Cloud9 fans who code, it is a small way to bring the team into their workspace. For developers discovering the theme through the JetBrains Marketplace, it is a clean dark theme with a distinct visual identity.
Cloud9 JetStream is available through the JetBrains Marketplace.
Install the theme, apply it in your JetBrains IDE, and try it in your next project.
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