colors, ../ och -a

README.md

@@ -56,8 +56,17 @@ Then:
 tui
 ```
 
+Use `-a` to include hidden files and directories:
+
+```bash
+tui -a
+```
+
 The installer does not overwrite an existing `~/.tui`.
 
+`-a` / `--all` is a command-line option, so the shell integration preserves it
+when the TUI restarts after an action.
+
 ## `.tui` configuration
 
 TUI searches for the nearest `.tui` starting in the current directory and
@@ -108,7 +117,12 @@ The default example configuration uses:
 
 - `↑` / `↓` — move cursor
 - `Enter` / `→` — execute the configured action
-- `←` — parent directory
+- `../` — synthetic parent-directory entry at the top of every listing
+- `←` — move the cursor to `../`; pressing `←` again enters the parent directory
+- `Enter` on `../` — enter the parent directory
+- navigation cannot move above the directory containing the applicable `.tui` file
+- hidden files and directories are hidden by default; `tui -a` shows them
+- file and directory colors follow the usual GNU `ls --color=yes` conventions for common file types
 - `Ctrl-K B` — set selection start
 - `Ctrl-K K` — set selection end
 - `Ctrl-K C` — copy marked files/folders