Feature request: Editor group should hug side panels

Google Antigravity
1

Feature request: editor group should hug side panels

In Antigravity IDE, the editor group sits with extra horizontal padding/gutters between the editor canvas and the side panels (agent rail on the left, activity bar / sidebar on the right). The editor should be flush with those panels: no empty side padding, so the buffer hugs the chrome.

Why

With both a left agent rail and a right activity bar, the extra gutters waste horizontal space for code. Centered-layout style margins and the minimap strip make the editor feel inset instead of using the full width between the panels.

Proposed solution

  • Add a layout option so the editor group is flush with adjacent side panels (zero extra left/right padding on the editor container).
  • Keep the glyph/breakpoint margin and line numbers; only remove the empty gutters outside the editor.
  • Optionally: a setting to hide the minimap or treat it as overlay so the buffer can extend to the panel edge.
  • Double-clicking the editor/panel sash should not be required to get a flush layout; it should be the default or a one-click setting.

Alternatives already tried

  • VS Code centered layout toggle: not exposed as a stable setting, and toggling it does not reliably remove Antigravity’s extra chrome padding.
  • Extension CSS/sash hooks: workbench sashes and editor-container padding are not available to extensions.
  • Hiding the minimap only: helps the right edge, not the left gutter next to the agent rail.

Environment

  • OS: Windows 11
  • App: Antigravity IDE (VS Code fork)
  • Workspace example: A:\Google Antigravity with filters.js open
  • workbench.sideBar.location is right; agent rail visible on the left

Originally filed this on the CLI GitHub by mistake (google-antigravity/antigravity-cli#1105). A collaborator asked to use this forum for IDE layout requests, so this is the same request in the right place. The GitHub issue is closed.