Mason enhanced Nim syntax highlighting for the helix-editor/helix repository, focusing on expanding support for built-in Nim types, constants, and improving the handling of dot expressions within the editor. Working primarily in Scheme, Mason refined the language grammar and syntax engine to deliver more accurate and readable code highlighting, directly supporting the editor’s Nim language roadmap. The work was scoped to the syntax highlighting subsystem and managed through disciplined Git-based collaboration. By addressing nuanced aspects of Nim’s syntax, Mason’s contribution improved code clarity and reduced debugging time, demonstrating depth in text editor development and language-specific feature implementation.