diff --git a/core/src/config.rs b/core/src/config.rs
index d4f5e5c5..cf040758 100644
--- a/core/src/config.rs
+++ b/core/src/config.rs
@@ -1,6 +1,5 @@
 use serde::Deserialize;
-use std::path::Path;
-use std::process;
+use std::{path::Path, process};
 
 #[derive(Deserialize)]
 pub struct Config {
diff --git a/core/src/inner.rs b/core/src/inner.rs
index 9d2e7162..0fadae80 100644
--- a/core/src/inner.rs
+++ b/core/src/inner.rs
@@ -1,3 +1,7 @@
+use crate::{Command, ListNode, Tab};
+use ego_tree::{NodeMut, Tree};
+use include_dir::{include_dir, Dir};
+use serde::Deserialize;
 use std::{
     fs::File,
     io::{BufRead, BufReader, Read},
@@ -6,11 +10,6 @@ use std::{
     path::{Path, PathBuf},
     rc::Rc,
 };
-
-use crate::{Command, ListNode, Tab};
-use ego_tree::{NodeMut, Tree};
-use include_dir::{include_dir, Dir};
-use serde::Deserialize;
 use temp_dir::TempDir;
 
 const TAB_DATA: Dir = include_dir!("$CARGO_MANIFEST_DIR/tabs");
diff --git a/tui/src/confirmation.rs b/tui/src/confirmation.rs
index f9ae42ad..3a4e9578 100644
--- a/tui/src/confirmation.rs
+++ b/tui/src/confirmation.rs
@@ -3,7 +3,8 @@ use ratatui::{
     crossterm::event::{KeyCode, KeyEvent, MouseEvent, MouseEventKind},
     layout::Alignment,
     prelude::*,
-    widgets::{Block, Borders, Clear, List},
+    symbols::border,
+    widgets::{Block, Clear, List},
 };
 use std::borrow::Cow;
 
@@ -22,10 +23,17 @@ pub struct ConfirmPrompt {
 
 impl ConfirmPrompt {
     pub fn new(names: &[&str]) -> Self {
+        let max_count_str = format!("{}", names.len());
         let names = names
             .iter()
             .zip(1..)
-            .map(|(name, n)| format!(" {n}. {name}"))
+            .map(|(name, n)| {
+                let count_str = format!("{n}");
+                let space_str = (0..(max_count_str.len() - count_str.len()))
+                    .map(|_| ' ')
+                    .collect::<String>();
+                format!("{space_str}{n}. {name}")
+            })
             .collect();
 
         Self {
@@ -51,17 +59,15 @@ impl ConfirmPrompt {
 
 impl FloatContent for ConfirmPrompt {
     fn draw(&mut self, frame: &mut Frame, area: Rect, theme: &theme::Theme) {
-        let block = Block::default()
-            .borders(Borders::ALL)
-            .border_set(ratatui::symbols::border::ROUNDED)
+        let block = Block::bordered()
+            .border_set(border::ROUNDED)
             .title(" Confirm selections ")
             .title_bottom(Line::from(vec![
-                Span::styled(" [", Style::default()),
+                Span::raw(" ["),
                 Span::styled("y", Style::default().fg(theme.success_color())),
-                Span::styled("] to continue ", Style::default()),
-                Span::styled("[", Style::default()),
+                Span::raw("] to continue ["),
                 Span::styled("n", Style::default().fg(theme.fail_color())),
-                Span::styled("] to abort ", Style::default()),
+                Span::raw("] to abort "),
             ]))
             .title_alignment(Alignment::Center)
             .title_style(Style::default().bold())
diff --git a/tui/src/filter.rs b/tui/src/filter.rs
index bc62bfa7..734db164 100644
--- a/tui/src/filter.rs
+++ b/tui/src/filter.rs
@@ -2,11 +2,9 @@ use crate::{state::ListEntry, theme::Theme};
 use linutil_core::{ego_tree::NodeId, Tab};
 use ratatui::{
     crossterm::event::{KeyCode, KeyEvent, KeyModifiers},
-    layout::{Position, Rect},
-    style::Style,
-    text::Span,
-    widgets::{Block, Borders, Paragraph},
-    Frame,
+    prelude::*,
+    symbols::border,
+    widgets::{Block, Paragraph},
 };
 use unicode_width::UnicodeWidthChar;
 
@@ -118,9 +116,8 @@ impl Filter {
         //Create the search bar widget
         let search_bar = Paragraph::new(display_text)
             .block(
-                Block::default()
-                    .borders(Borders::ALL)
-                    .border_set(ratatui::symbols::border::ROUNDED)
+                Block::bordered()
+                    .border_set(border::ROUNDED)
                     .title(" Search "),
             )
             .style(Style::default().fg(search_color));
diff --git a/tui/src/float.rs b/tui/src/float.rs
index d9c8d6de..9f29bff3 100644
--- a/tui/src/float.rs
+++ b/tui/src/float.rs
@@ -1,7 +1,7 @@
 use crate::{hint::Shortcut, theme::Theme};
 use ratatui::{
     crossterm::event::{KeyCode, KeyEvent, MouseEvent},
-    layout::{Constraint, Direction, Layout, Rect},
+    layout::{Constraint, Layout, Rect},
     Frame,
 };
 
@@ -29,23 +29,19 @@ impl<Content: FloatContent + ?Sized> Float<Content> {
     }
 
     fn floating_window(&self, size: Rect) -> Rect {
-        let hor_float = Layout::default()
-            .constraints([
-                Constraint::Percentage((100 - self.width_percent) / 2),
-                Constraint::Percentage(self.width_percent),
-                Constraint::Percentage((100 - self.width_percent) / 2),
-            ])
-            .direction(Direction::Horizontal)
-            .split(size)[1];
+        let hor_float = Layout::horizontal([
+            Constraint::Percentage((100 - self.width_percent) / 2),
+            Constraint::Percentage(self.width_percent),
+            Constraint::Percentage((100 - self.width_percent) / 2),
+        ])
+        .split(size)[1];
 
-        Layout::default()
-            .constraints([
-                Constraint::Percentage((100 - self.height_percent) / 2),
-                Constraint::Percentage(self.height_percent),
-                Constraint::Percentage((100 - self.height_percent) / 2),
-            ])
-            .direction(Direction::Vertical)
-            .split(hor_float)[1]
+        Layout::vertical([
+            Constraint::Percentage((100 - self.height_percent) / 2),
+            Constraint::Percentage(self.height_percent),
+            Constraint::Percentage((100 - self.height_percent) / 2),
+        ])
+        .split(hor_float)[1]
     }
 
     pub fn draw(&mut self, frame: &mut Frame, parent_area: Rect, theme: &Theme) {
diff --git a/tui/src/floating_text.rs b/tui/src/floating_text.rs
index 18074ddb..c2077de5 100644
--- a/tui/src/floating_text.rs
+++ b/tui/src/floating_text.rs
@@ -2,11 +2,9 @@ use crate::{float::FloatContent, hint::Shortcut, theme::Theme};
 use linutil_core::Command;
 use ratatui::{
     crossterm::event::{KeyCode, KeyEvent, MouseEvent, MouseEventKind},
-    layout::Rect,
-    style::{Color, Style, Stylize},
-    text::{Line, Span, Text},
+    prelude::*,
+    symbols::border,
     widgets::{Block, Borders, Clear, Paragraph, Wrap},
-    Frame,
 };
 use tree_sitter_bash as hl_bash;
 use tree_sitter_highlight::{self as hl, HighlightEvent};
@@ -177,9 +175,9 @@ impl<'a> FloatContent for FloatingText<'a> {
     fn draw(&mut self, frame: &mut Frame, area: Rect, _theme: &Theme) {
         let block = Block::default()
             .borders(Borders::ALL)
-            .border_set(ratatui::symbols::border::ROUNDED)
+            .border_set(border::ROUNDED)
             .title(self.mode_title.as_str())
-            .title_alignment(ratatui::layout::Alignment::Center)
+            .title_alignment(Alignment::Center)
             .title_style(Style::default().reversed())
             .style(Style::default());
 
diff --git a/tui/src/hint.rs b/tui/src/hint.rs
index 2ab4b99d..0f77f7a5 100644
--- a/tui/src/hint.rs
+++ b/tui/src/hint.rs
@@ -5,8 +5,8 @@ use ratatui::{
 use std::borrow::Cow;
 
 pub struct Shortcut {
-    pub key_sequences: Vec<Span<'static>>,
-    pub desc: &'static str,
+    key_sequences: Vec<Span<'static>>,
+    desc: &'static str,
 }
 
 fn add_spacing(list: Vec<Vec<Span>>) -> Line {
@@ -18,7 +18,7 @@ fn add_spacing(list: Vec<Vec<Span>>) -> Line {
         .collect()
 }
 
-pub fn span_vec_len(span_vec: &[Span]) -> usize {
+fn span_vec_len(span_vec: &[Span]) -> usize {
     span_vec.iter().rfold(0, |init, s| init + s.width())
 }
 
@@ -38,7 +38,7 @@ pub fn create_shortcut_list(
     let columns = (render_width as usize / (max_shortcut_width + 4)).max(1);
     let rows = (shortcut_spans.len() + columns - 1) / columns;
 
-    let mut lines: Vec<Line<'static>> = Vec::new();
+    let mut lines: Vec<Line<'static>> = Vec::with_capacity(rows);
 
     for row in 0..rows {
         let row_spans: Vec<_> = (0..columns)
@@ -73,13 +73,7 @@ impl Shortcut {
         let description = Span::styled(self.desc, Style::default().italic());
         self.key_sequences
             .iter()
-            .flat_map(|seq| {
-                [
-                    Span::default().content("["),
-                    seq.clone(),
-                    Span::default().content("] "),
-                ]
-            })
+            .flat_map(|seq| [Span::raw("["), seq.clone(), Span::raw("] ")])
             .chain(std::iter::once(description))
             .collect()
     }
diff --git a/tui/src/main.rs b/tui/src/main.rs
index 1f03fc1b..ee0c3235 100644
--- a/tui/src/main.rs
+++ b/tui/src/main.rs
@@ -25,7 +25,7 @@ use ratatui::{
 };
 use state::AppState;
 use std::{
-    io::{self, stdout},
+    io::{stdout, Result, Stdout},
     path::PathBuf,
     time::Duration,
 };
@@ -53,7 +53,7 @@ pub struct Args {
     size_bypass: bool,
 }
 
-fn main() -> io::Result<()> {
+fn main() -> Result<()> {
     let args = Args::parse();
 
     let mut state = AppState::new(args);
@@ -77,10 +77,7 @@ fn main() -> io::Result<()> {
     Ok(())
 }
 
-fn run(
-    terminal: &mut Terminal<CrosstermBackend<io::Stdout>>,
-    state: &mut AppState,
-) -> io::Result<()> {
+fn run(terminal: &mut Terminal<CrosstermBackend<Stdout>>, state: &mut AppState) -> Result<()> {
     loop {
         terminal.draw(|frame| state.draw(frame)).unwrap();
         // Wait for an event
diff --git a/tui/src/running_command.rs b/tui/src/running_command.rs
index 9a9ea7a9..a3248c95 100644
--- a/tui/src/running_command.rs
+++ b/tui/src/running_command.rs
@@ -6,14 +6,13 @@ use portable_pty::{
 };
 use ratatui::{
     crossterm::event::{KeyCode, KeyEvent, KeyModifiers, MouseEvent, MouseEventKind},
-    layout::{Rect, Size},
-    style::{Style, Stylize},
-    text::Line,
-    widgets::{Block, Borders},
-    Frame,
+    prelude::*,
+    symbols::border,
+    widgets::Block,
 };
 use std::{
-    io::Write,
+    fs::File,
+    io::{Result, Write},
     sync::{Arc, Mutex},
     thread::JoinHandle,
 };
@@ -47,9 +46,8 @@ impl FloatContent for RunningCommand {
         // Define the block for the terminal display
         let block = if !self.is_finished() {
             // Display a block indicating the command is running
-            Block::default()
-                .borders(Borders::ALL)
-                .border_set(ratatui::symbols::border::ROUNDED)
+            Block::bordered()
+                .border_set(border::ROUNDED)
                 .title_top(Line::from("Running the command....").centered())
                 .title_style(Style::default().reversed())
                 .title_bottom(Line::from("Press Ctrl-C to KILL the command"))
@@ -68,16 +66,15 @@ impl FloatContent for RunningCommand {
             };
 
             let log_path = if let Some(log_path) = &self.log_path {
-                Line::from(format!(" Log saved: {} ", log_path)).centered()
+                Line::from(format!(" Log saved: {} ", log_path))
             } else {
-                Line::from(" Press 'l' to save command log ").centered()
+                Line::from(" Press 'l' to save command log ")
             };
 
-            Block::default()
-                .borders(Borders::ALL)
-                .border_set(ratatui::symbols::border::ROUNDED)
+            Block::bordered()
+                .border_set(border::ROUNDED)
                 .title_top(title_line.centered())
-                .title_bottom(log_path)
+                .title_bottom(log_path.centered())
         };
 
         // Calculate the inner size of the terminal area, considering borders
@@ -300,7 +297,7 @@ impl RunningCommand {
         }
     }
 
-    fn save_log(&self) -> std::io::Result<String> {
+    fn save_log(&self) -> Result<String> {
         let mut log_path = std::env::temp_dir();
         let date_format = format_description!("[year]-[month]-[day]-[hour]-[minute]-[second]");
         log_path.push(format!(
@@ -311,7 +308,7 @@ impl RunningCommand {
                 .unwrap()
         ));
 
-        let mut file = std::fs::File::create(&log_path)?;
+        let mut file = File::create(&log_path)?;
         let buffer = self.buffer.lock().unwrap();
         file.write_all(&buffer)?;
 
diff --git a/tui/src/state.rs b/tui/src/state.rs
index c80eb763..af29b5f0 100644
--- a/tui/src/state.rs
+++ b/tui/src/state.rs
@@ -12,12 +12,10 @@ use crate::{
 use linutil_core::{ego_tree::NodeId, Command, Config, ListNode, TabList};
 use ratatui::{
     crossterm::event::{KeyCode, KeyEvent, KeyEventKind, KeyModifiers, MouseEvent, MouseEventKind},
-    layout::{Alignment, Constraint, Direction, Flex, Layout, Position, Rect},
-    style::{Style, Stylize},
+    layout::Flex,
+    prelude::*,
     symbols::border,
-    text::{Line, Span, Text},
     widgets::{Block, List, ListState, Paragraph},
-    Frame,
 };
 use std::rc::Rc;
 
@@ -242,6 +240,8 @@ impl AppState {
                     Shortcut::new("Previous theme", ["T"]),
                     Shortcut::new("Next tab", ["Tab"]),
                     Shortcut::new("Previous tab", ["Shift-Tab"]),
+                    Shortcut::new("Important actions guide", ["g"]),
+                    Shortcut::new("Multi-selection mode", ["v"]),
                 ]),
             ),
 
diff --git a/tui/src/theme.rs b/tui/src/theme.rs
index 9e10ce70..f09c6b53 100644
--- a/tui/src/theme.rs
+++ b/tui/src/theme.rs
@@ -14,91 +14,91 @@ pub enum Theme {
 }
 
 impl Theme {
-    pub fn dir_color(&self) -> Color {
+    pub const fn dir_color(&self) -> Color {
         match self {
             Theme::Default => Color::Blue,
             Theme::Compatible => Color::Blue,
         }
     }
 
-    pub fn cmd_color(&self) -> Color {
+    pub const fn cmd_color(&self) -> Color {
         match self {
             Theme::Default => Color::Rgb(204, 224, 208),
             Theme::Compatible => Color::LightGreen,
         }
     }
 
-    pub fn multi_select_disabled_color(&self) -> Color {
+    pub const fn multi_select_disabled_color(&self) -> Color {
         match self {
             Theme::Default => Color::DarkGray,
             Theme::Compatible => Color::DarkGray,
         }
     }
 
-    pub fn tab_color(&self) -> Color {
+    pub const fn tab_color(&self) -> Color {
         match self {
             Theme::Default => Color::Rgb(255, 255, 85),
             Theme::Compatible => Color::Yellow,
         }
     }
 
-    pub fn dir_icon(&self) -> &'static str {
+    pub const fn dir_icon(&self) -> &'static str {
         match self {
             Theme::Default => "  ",
             Theme::Compatible => "[DIR]",
         }
     }
 
-    pub fn cmd_icon(&self) -> &'static str {
+    pub const fn cmd_icon(&self) -> &'static str {
         match self {
             Theme::Default => "  ",
             Theme::Compatible => "[CMD]",
         }
     }
 
-    pub fn tab_icon(&self) -> &'static str {
+    pub const fn tab_icon(&self) -> &'static str {
         match self {
             Theme::Default => "  ",
             Theme::Compatible => ">> ",
         }
     }
 
-    pub fn multi_select_icon(&self) -> &'static str {
+    pub const fn multi_select_icon(&self) -> &'static str {
         match self {
             Theme::Default => "",
             Theme::Compatible => "*",
         }
     }
 
-    pub fn success_color(&self) -> Color {
+    pub const fn success_color(&self) -> Color {
         match self {
             Theme::Default => Color::Rgb(5, 255, 55),
             Theme::Compatible => Color::Green,
         }
     }
 
-    pub fn fail_color(&self) -> Color {
+    pub const fn fail_color(&self) -> Color {
         match self {
             Theme::Default => Color::Rgb(199, 55, 44),
             Theme::Compatible => Color::Red,
         }
     }
 
-    pub fn focused_color(&self) -> Color {
+    pub const fn focused_color(&self) -> Color {
         match self {
             Theme::Default => Color::LightBlue,
             Theme::Compatible => Color::LightBlue,
         }
     }
 
-    pub fn search_preview_color(&self) -> Color {
+    pub const fn search_preview_color(&self) -> Color {
         match self {
             Theme::Default => Color::DarkGray,
             Theme::Compatible => Color::DarkGray,
         }
     }
 
-    pub fn unfocused_color(&self) -> Color {
+    pub const fn unfocused_color(&self) -> Color {
         match self {
             Theme::Default => Color::Gray,
             Theme::Compatible => Color::Gray,
diff --git a/tui/src/tips.rs b/tui/src/tips.rs
index 046b5cb6..17341c79 100644
--- a/tui/src/tips.rs
+++ b/tui/src/tips.rs
@@ -8,7 +8,6 @@ pub fn get_random_tip() -> &'static str {
         return "";
     }
 
-    let mut rng = rand::thread_rng();
-    let random_index = rng.gen_range(0..tips.len());
+    let random_index = rand::thread_rng().gen_range(0..tips.len());
     tips[random_index]
 }