TUI has vertical `│` indent guides in the explorer; GTK TreeView doesn't support vertical-only guides (built-in `enable_tree_lines` draws horizontal connectors too).
Options:
- Cell data function with guide characters
- Cairo custom drawing in a separate column
Key files: `src/gtk/tree.rs`
TUI has vertical `│` indent guides in the explorer; GTK TreeView doesn't support vertical-only guides (built-in `enable_tree_lines` draws horizontal connectors too).
Options:
Key files: `src/gtk/tree.rs`