- Prepend a space to C_FORMAT_LINE and WREN_FORMAT_LINE for consistent column alignment - Add hr() helper function to print horizontal separators for readability - Change C metrics label from empty string to "C" and WREN label from empty to "WREN" - Update source directories from "src/vm" and "src/optional" to "deps/wren/src/vm" and "deps/wren/src/optional" to match actual project structure