Antigravity 2.19.1

[Improvements] You can now send a message directly to a subagent from the message box, without going through the main agent.

[Improvements] Rendered Markdown in artifacts and in files opened in the side pane can now be exported as a PDF from the overflow menu, including tables, code blocks, and diagrams.

[Improvements] The Confirm Undo dialog now offers an option to revert only the conversation.

[Improvements] Pressing Cmd+A or Ctrl+A now selects only the content pane or terminal you are focused on instead of the whole page.

[Improvements] On Windows and Linux, a left-click on the tray icon now reopens or focuses the Antigravity window.

[Fixes] Fixed an issue where custom agents ignored your global and project rules.

[Fixes] Fixed an issue where a terminal command step you had expanded collapsed again when the command finished.

[Fixes] Fixed an issue where selecting the image pill on a file step opened the image in the side pane and also expanded the step to show a second copy.

[Fixes] Fixed an issue where double-clicking or triple-clicking text in the file viewer and then dragging did not extend the selection by word or line.

[Fixes] Fixed an issue where the title bar Forward button could stay disabled, and where the Back and Forward tooltips on Windows and Linux showed shortcuts that did nothing.