diff --git a/src/book/mod.rs b/src/book/mod.rs
index b248971..f93a37d 100644
--- a/src/book/mod.rs
+++ b/src/book/mod.rs
@@ -3,7 +3,10 @@ use std::cmp::max;
 use anyhow::{anyhow, Result};
 use ironcalc::{
     base::{
-        expressions::types::Area, types::{Border, Col, Fill, Font, Row, SheetData, Style, Worksheet}, worksheet::WorksheetDimension, Model, UserModel
+        expressions::types::Area,
+        types::{Border, Col, Fill, Font, Row, SheetData, Style, Worksheet},
+        worksheet::WorksheetDimension,
+        Model, UserModel,
     },
     export::save_xlsx_to_writer,
     import::load_from_xlsx,
@@ -141,7 +144,9 @@ impl Book {
     }
 
     pub fn set_sheet_name(&mut self, idx: u32, sheet_name: &str) -> Result<()> {
-        self.model.rename_sheet(idx, sheet_name).map_err(|e| anyhow!(e))?;
+        self.model
+            .rename_sheet(idx, sheet_name)
+            .map_err(|e| anyhow!(e))?;
         Ok(())
     }
 
@@ -151,7 +156,9 @@ impl Book {
         if let Some(name) = sheet_name {
             self.set_sheet_name(idx, name)?;
         }
-        self.model.set_selected_sheet(self.current_sheet).map_err(|e| anyhow!(e))?;
+        self.model
+            .set_selected_sheet(self.current_sheet)
+            .map_err(|e| anyhow!(e))?;
         Ok(())
     }
 
@@ -249,7 +256,8 @@ impl Book {
 
     pub fn clear_cell_range_all(&mut self, sheet: u32, start: Address, end: Address) -> Result<()> {
         let area = calculate_area(sheet, start, end);
-        self.model.range_clear_all(&area)
+        self.model
+            .range_clear_all(&area)
             .map_err(|s| anyhow!("Unable to clear cell contents {}", s))?;
         Ok(())
     }
@@ -263,7 +271,10 @@ impl Book {
         // TODO(jwall): This is modeled a little weird. We should probably record
         // the error *somewhere* but for the user there is nothing to be done except
         // not use a style.
-        match self.model.get_model().get_style_for_cell(sheet, cell.row as i32, cell.col as i32)
+        match self
+            .model
+            .get_model()
+            .get_style_for_cell(sheet, cell.row as i32, cell.col as i32)
         {
             Err(_) => None,
             Ok(s) => Some(s),
@@ -271,13 +282,25 @@ impl Book {
     }
 
     fn get_column(&self, sheet: u32, col: usize) -> Result<Option<&Col>> {
-        Ok(self.model.get_model().workbook.worksheet(sheet)
-            .map_err(|e| anyhow!("{}", e))?.cols.get(col))
+        Ok(self
+            .model
+            .get_model()
+            .workbook
+            .worksheet(sheet)
+            .map_err(|e| anyhow!("{}", e))?
+            .cols
+            .get(col))
     }
 
     fn get_row(&self, sheet: u32, col: usize) -> Result<Option<&Row>> {
-        Ok(self.model.get_model().workbook.worksheet(sheet)
-            .map_err(|e| anyhow!("{}", e))?.rows.get(col))
+        Ok(self
+            .model
+            .get_model()
+            .workbook
+            .worksheet(sheet)
+            .map_err(|e| anyhow!("{}", e))?
+            .rows
+            .get(col))
     }
 
     pub fn get_column_style(&self, sheet: u32, col: usize) -> Result<Option<Style>> {
@@ -336,7 +359,8 @@ impl Book {
 
     pub fn set_cell_style(&mut self, style: &[(&str, &str)], area: &Area) -> Result<()> {
         for (path, val) in style {
-            self.model.update_range_style(area, path, val)
+            self.model
+                .update_range_style(area, path, val)
                 .map_err(|s| anyhow!("Unable to format cell {}", s))?;
         }
         Ok(())
@@ -458,8 +482,14 @@ impl Book {
         self.get_column_size_for_sheet(self.current_sheet, idx)
     }
 
-    pub fn get_column_size_for_sheet(&self, sheet: u32, idx: usize) -> std::result::Result<usize, anyhow::Error> {
-        Ok((self.model.get_column_width(sheet, idx as i32)
+    pub fn get_column_size_for_sheet(
+        &self,
+        sheet: u32,
+        idx: usize,
+    ) -> std::result::Result<usize, anyhow::Error> {
+        Ok((self
+            .model
+            .get_column_width(sheet, idx as i32)
             .map_err(|e| anyhow!("Error getting column width: {:?}", e))?
             / COL_PIXELS) as usize)
     }
@@ -468,8 +498,14 @@ impl Book {
         self.set_column_size_for_sheet(self.current_sheet, col, width)
     }
 
-    pub fn set_column_size_for_sheet(&mut self, sheet: u32, col: usize, width: usize) -> std::result::Result<(), anyhow::Error> {
-        self.model.set_column_width(sheet, col as i32, width as f64 * COL_PIXELS)
+    pub fn set_column_size_for_sheet(
+        &mut self,
+        sheet: u32,
+        col: usize,
+        width: usize,
+    ) -> std::result::Result<(), anyhow::Error> {
+        self.model
+            .set_column_width(sheet, col as i32, width as f64 * COL_PIXELS)
             .map_err(|e| anyhow!("Error setting column width: {:?}", e))?;
         Ok(())
     }
@@ -491,7 +527,8 @@ impl Book {
     /// Select a sheet by name.
     pub fn select_sheet_by_name(&mut self, name: &str) -> bool {
         if let Some((idx, _sheet)) = self
-            .model.get_model()
+            .model
+            .get_model()
             .workbook
             .worksheets
             .iter()
@@ -515,7 +552,9 @@ impl Book {
         if next == len {
             next = 0;
         }
-        self.model.set_selected_sheet(next).expect("Unexpected error selecting sheet");
+        self.model
+            .set_selected_sheet(next)
+            .expect("Unexpected error selecting sheet");
         self.current_sheet = next;
     }
 
@@ -526,21 +565,26 @@ impl Book {
         } else {
             self.current_sheet - 1
         };
-        self.model.set_selected_sheet(next).expect("Unexpected error selecting sheet");
+        self.model
+            .set_selected_sheet(next)
+            .expect("Unexpected error selecting sheet");
         self.current_sheet = next;
     }
 
     /// Select a sheet by id.
     pub fn select_sheet_by_id(&mut self, id: u32) -> bool {
         if let Some((idx, _sheet)) = self
-            .model.get_model()
+            .model
+            .get_model()
             .workbook
             .worksheets
             .iter()
             .enumerate()
             .find(|(_idx, sheet)| sheet.sheet_id == id)
         {
-            self.model.set_selected_sheet(idx as u32).expect("Unexpected error selecting sheet");
+            self.model
+                .set_selected_sheet(idx as u32)
+                .expect("Unexpected error selecting sheet");
             self.current_sheet = idx as u32;
             return true;
         }
@@ -553,7 +597,8 @@ impl Book {
         // Looks like it should be done with:
         // https://docs.rs/ironcalc_base/latest/ironcalc_base/struct.UserModel.html#method.get_worksheets_properties
         Ok(self
-            .model.get_model()
+            .model
+            .get_model()
             .workbook
             .worksheet(self.current_sheet)
             .map_err(|s| anyhow!("Invalid Worksheet id: {}: error: {}", self.current_sheet, s))?)
@@ -564,7 +609,8 @@ impl Book {
         // Looks like it should be done with:
         // https://docs.rs/ironcalc_base/latest/ironcalc_base/struct.UserModel.html#method.get_worksheets_properties
         Ok(&self
-            .model.get_model()
+            .model
+            .get_model()
             .workbook
             .worksheet(idx as u32)
             .map_err(|s| anyhow!("Invalid Worksheet: {}", s))?
diff --git a/src/ui/cmd.rs b/src/ui/cmd.rs
index 2a8b2a1..fed68d1 100644
--- a/src/ui/cmd.rs
+++ b/src/ui/cmd.rs
@@ -382,7 +382,7 @@ pub(crate) fn parse_color(color: &str) -> Result<String, &'static str> {
                     return Err("Invalid color");
                 }
             } else {
-                    return Err("Invalid color");
+                return Err("Invalid color");
             }
         }
     };
diff --git a/src/ui/mod.rs b/src/ui/mod.rs
index aa02384..042c1a8 100644
--- a/src/ui/mod.rs
+++ b/src/ui/mod.rs
@@ -244,10 +244,13 @@ impl<'ws> Workspace<'ws> {
 
     /// Move to the top row without changing columns
     pub fn move_to_top(&mut self) -> Result<()> {
-        self.book.move_to(&Address { row: 1, col: self.book.location.col })?;
+        self.book.move_to(&Address {
+            row: 1,
+            col: self.book.location.col,
+        })?;
         Ok(())
     }
-    
+
     /// Move a row up in the current sheet.
     pub fn move_up(&mut self) -> Result<()> {
         let mut loc = self.book.location.clone();
@@ -320,7 +323,8 @@ impl<'ws> Workspace<'ws> {
                 "Edit Mode:".to_string(),
                 "* ENTER/RETURN: Exit edit mode and save changes".to_string(),
                 "* Ctrl-r: Enter Range Selection mode".to_string(),
-                "* v: Enter Range Selection mode with the start of the range already selected".to_string(),
+                "* v: Enter Range Selection mode with the start of the range already selected"
+                    .to_string(),
                 "* ESC: Exit edit mode and discard changes".to_string(),
                 "Otherwise edit as normal".to_string(),
             ],
@@ -448,8 +452,7 @@ impl<'ws> Workspace<'ws> {
                         self.book.set_sheet_name(idx as u32, name)?;
                     }
                     _ => {
-                        self.book
-                            .set_sheet_name(self.book.current_sheet, name)?;
+                        self.book.set_sheet_name(self.book.current_sheet, name)?;
                     }
                 }
                 Ok(None)
@@ -462,22 +465,28 @@ impl<'ws> Workspace<'ws> {
                 self.book.select_sheet_by_name(name);
                 Ok(None)
             }
-            Ok(Some(Cmd::Quit)) => {
-                Ok(Some(ExitCode::SUCCESS))
-            }
+            Ok(Some(Cmd::Quit)) => Ok(Some(ExitCode::SUCCESS)),
             Ok(Some(Cmd::ColorRows(_count, color))) => {
                 let row_count = _count.unwrap_or(1);
                 let row = self.book.location.row;
-                for r in row..(row+row_count) {
-                    self.book.set_row_style(&[("fill.bg_color", &color)], self.book.current_sheet, r)?;
+                for r in row..(row + row_count) {
+                    self.book.set_row_style(
+                        &[("fill.bg_color", &color)],
+                        self.book.current_sheet,
+                        r,
+                    )?;
                 }
                 Ok(None)
             }
             Ok(Some(Cmd::ColorColumns(_count, color))) => {
                 let col_count = _count.unwrap_or(1);
                 let col = self.book.location.col;
-                for c in col..(col+col_count) {
-                    self.book.set_col_style(&[("fill.bg_color", &color)], self.book.current_sheet, c)?;
+                for c in col..(col + col_count) {
+                    self.book.set_col_style(
+                        &[("fill.bg_color", &color)],
+                        self.book.current_sheet,
+                        c,
+                    )?;
                 }
                 Ok(None)
             }
@@ -489,7 +498,7 @@ impl<'ws> Workspace<'ws> {
                         row: start.row as i32,
                         column: start.col as i32,
                         width: (end.col - start.col + 1) as i32,
-                        height: (end.row - start.row + 1) as i32
+                        height: (end.row - start.row + 1) as i32,
                     }
                 } else {
                     let address = self.book.location.clone();
@@ -498,10 +507,11 @@ impl<'ws> Workspace<'ws> {
                         row: address.row as i32,
                         column: address.col as i32,
                         width: 1,
-                        height: 1
+                        height: 1,
                     }
                 };
-                self.book.set_cell_style(&[("fill.bg_color", &color)], &area)?;
+                self.book
+                    .set_cell_style(&[("fill.bg_color", &color)], &area)?;
                 Ok(None)
             }
             Ok(None) => {
@@ -611,11 +621,7 @@ impl<'ws> Workspace<'ws> {
                     })?;
                     self.state.range_select.sheet = Some(self.book.current_sheet);
                 }
-                KeyCode::Char('C')
-                    if key
-                        .modifiers
-                        .contains(KeyModifiers::CONTROL) =>
-                {
+                KeyCode::Char('C') if key.modifiers.contains(KeyModifiers::CONTROL) => {
                     self.copy_range(true)?;
                     self.exit_range_select_mode()?;
                 }
@@ -632,7 +638,10 @@ impl<'ws> Workspace<'ws> {
                     self.exit_range_select_mode()?;
                 }
                 KeyCode::Char('x') => {
-                    if let (Some(from), Some(to)) = (self.state.range_select.start.as_ref(), self.state.range_select.end.as_ref()) {
+                    if let (Some(from), Some(to)) = (
+                        self.state.range_select.start.as_ref(),
+                        self.state.range_select.end.as_ref(),
+                    ) {
                         self.book.extend_to(from, to)?;
                     }
                     self.exit_range_select_mode()?;
@@ -651,20 +660,15 @@ impl<'ws> Workspace<'ws> {
     fn copy_range(&mut self, formatted: bool) -> Result<(), anyhow::Error> {
         self.update_range_selection()?;
         match &self.state.range_select.get_range() {
-            Some((
-                start,
-                end,
-            )) => {
+            Some((start, end)) => {
                 let mut rows = Vec::new();
-                for row in (AddressRange { start, end, }).as_rows() {
+                for row in (AddressRange { start, end }).as_rows() {
                     let mut cols = Vec::new();
                     for cell in row {
                         cols.push(if formatted {
-                            self.book
-                                .get_cell_addr_rendered(&cell)?
+                            self.book.get_cell_addr_rendered(&cell)?
                         } else {
-                            self.book
-                                .get_cell_addr_contents(&cell)?
+                            self.book.get_cell_addr_contents(&cell)?
                         });
                     }
                     rows.push(cols);
@@ -673,11 +677,9 @@ impl<'ws> Workspace<'ws> {
             }
             None => {
                 self.state.clipboard = Some(ClipboardContents::Cell(if formatted {
-                    self.book
-                        .get_current_cell_rendered()?
+                    self.book.get_current_cell_rendered()?
                 } else {
-                    self.book
-                        .get_current_cell_contents()?
+                    self.book.get_current_cell_contents()?
                 }));
             }
         }
@@ -743,11 +745,7 @@ impl<'ws> Workspace<'ws> {
                         self.book.get_current_cell_rendered()?,
                     ));
                 }
-                KeyCode::Char('C')
-                    if key
-                        .modifiers
-                        .contains(KeyModifiers::CONTROL) =>
-                {
+                KeyCode::Char('C') if key.modifiers.contains(KeyModifiers::CONTROL) => {
                     self.state.clipboard = Some(ClipboardContents::Cell(
                         self.book.get_current_cell_rendered()?,
                     ));
@@ -861,7 +859,13 @@ impl<'ws> Workspace<'ws> {
                 }
                 KeyCode::Char('g') => {
                     // TODO(zaphar): This really needs a better state machine.
-                    if self.state.char_queue.first().map(|c| *c == 'g').unwrap_or(false) {
+                    if self
+                        .state
+                        .char_queue
+                        .first()
+                        .map(|c| *c == 'g')
+                        .unwrap_or(false)
+                    {
                         self.state.char_queue.pop();
                         self.move_to_top()?;
                     } else {
diff --git a/src/ui/render/test.rs b/src/ui/render/test.rs
index 68f0ecd..aed6856 100644
--- a/src/ui/render/test.rs
+++ b/src/ui/render/test.rs
@@ -14,8 +14,8 @@ fn test_viewport_get_visible_columns() {
     let default_size = book.get_col_size(1).expect("Failed to get column size");
     let width = dbg!(dbg!(default_size) * 12 / 2);
     let app_state = AppState::default();
-    let viewport =
-        Viewport::new(&book, Some(&app_state.range_select)).with_selected(Address { row: 1, col: 17 });
+    let viewport = Viewport::new(&book, Some(&app_state.range_select))
+        .with_selected(Address { row: 1, col: 17 });
     let cols = viewport
         .get_visible_columns((width + 5) as u16, &mut state)
         .expect("Failed to get visible columns");
@@ -31,8 +31,8 @@ fn test_viewport_get_visible_rows() {
     );
     let height = 6;
     let app_state = AppState::default();
-    let viewport =
-        Viewport::new(&book, Some(&app_state.range_select)).with_selected(Address { row: 17, col: 1 });
+    let viewport = Viewport::new(&book, Some(&app_state.range_select))
+        .with_selected(Address { row: 17, col: 1 });
     let rows = dbg!(viewport.get_visible_rows(height as u16, &mut state));
     assert_eq!(height - 1, rows.len());
     assert_eq!(
@@ -65,8 +65,8 @@ fn test_viewport_visible_columns_after_length_change() {
         .expect("Failed to set column size");
     {
         let app_state = AppState::default();
-        let viewport =
-            Viewport::new(&book, Some(&app_state.range_select)).with_selected(Address { row: 1, col: 1 });
+        let viewport = Viewport::new(&book, Some(&app_state.range_select))
+            .with_selected(Address { row: 1, col: 1 });
         let cols = viewport
             .get_visible_columns((width + 5) as u16, &mut state)
             .expect("Failed to get visible columns");
@@ -97,7 +97,9 @@ fn test_color_mapping() {
         ("darkgrey", Color::DarkGray),
         ("darkgray", Color::DarkGray),
         ("#35f15b", Color::Rgb(53, 241, 91)),
-    ].map(|(s, c)| (Some(s.to_string()), c)) {
+    ]
+    .map(|(s, c)| (Some(s.to_string()), c))
+    {
         assert_eq!(super::viewport::map_color(s.as_ref(), Color::Gray), c);
     }
 }
diff --git a/src/ui/test.rs b/src/ui/test.rs
index 11fb9b5..ffbeb02 100644
--- a/src/ui/test.rs
+++ b/src/ui/test.rs
@@ -304,7 +304,6 @@ fn test_cmd_color_columns_with_idx_and_color() {
     assert_eq!(cmd, Cmd::ColorColumns(Some(1), parse_color("red").unwrap()));
 }
 
-
 #[test]
 fn test_input_navitation_enter_key() {
     let mut ws = new_workspace();
@@ -1004,8 +1003,7 @@ macro_rules! assert_range_clear {
             .run(&mut ws)
             .expect("Failed to handle script");
         assert_eq!(Some(&Modality::RangeSelect), ws.state.modality_stack.last());
-        $script.run(&mut ws)
-            .expect("Failed to handle script");
+        $script.run(&mut ws).expect("Failed to handle script");
         assert_eq!(
             "".to_string(),
             ws.book
@@ -1023,18 +1021,21 @@ macro_rules! assert_range_clear {
 
 #[test]
 fn test_range_select_clear_upper_d() {
-    assert_range_clear!(script()
-        .char('j')
-        .char('l')
-        .char('D'));
+    assert_range_clear!(script().char('j').char('l').char('D'));
 }
 
 #[test]
 fn test_range_select_movement() {
     let mut ws = new_workspace();
-    ws.book.new_sheet(Some("s2")).expect("Unable create s2 sheet");
-    ws.book.new_sheet(Some("s3")).expect("Unable create s3 sheet");
-    script().ctrl('r').run(&mut ws)
+    ws.book
+        .new_sheet(Some("s2"))
+        .expect("Unable create s2 sheet");
+    ws.book
+        .new_sheet(Some("s3"))
+        .expect("Unable create s3 sheet");
+    script()
+        .ctrl('r')
+        .run(&mut ws)
         .expect("failed to run script");
     assert_eq!(Some(&Modality::RangeSelect), ws.state.modality_stack.last());
     script()
@@ -1064,10 +1065,7 @@ fn test_range_select_movement() {
 
 #[test]
 fn test_range_select_clear_lower_d() {
-    assert_range_clear!(script()
-        .char('j')
-        .char('l')
-        .char('d'));
+    assert_range_clear!(script().char('j').char('l').char('d'));
 }
 
 macro_rules! assert_range_copy {
@@ -1075,8 +1073,12 @@ macro_rules! assert_range_copy {
         let mut ws = new_workspace();
         let top_left_addr = Address { row: 2, col: 2 };
         let bot_right_addr = Address { row: 4, col: 4 };
-        ws.book.update_cell(&top_left_addr, "top_left").expect("Failed to update top left");
-        ws.book.update_cell(&bot_right_addr, "bot_right").expect("Failed to update top left");
+        ws.book
+            .update_cell(&top_left_addr, "top_left")
+            .expect("Failed to update top left");
+        ws.book
+            .update_cell(&bot_right_addr, "bot_right")
+            .expect("Failed to update top left");
         assert!(ws.state.clipboard.is_none());
         script()
             .ctrl('r')
@@ -1085,7 +1087,14 @@ macro_rules! assert_range_copy {
             .char(' ')
             .run(&mut ws)
             .expect("failed to run script");
-        assert_eq!(&top_left_addr, ws.state.range_select.start.as_ref().expect("Didn't find a start of range"));
+        assert_eq!(
+            &top_left_addr,
+            ws.state
+                .range_select
+                .start
+                .as_ref()
+                .expect("Didn't find a start of range")
+        );
         script()
             .char('2')
             .char('j')
@@ -1093,27 +1102,53 @@ macro_rules! assert_range_copy {
             .char('l')
             .run(&mut ws)
             .expect("failed to run script");
-        assert_eq!(&bot_right_addr, ws.state.range_select.end.as_ref().expect("Didn't find a start of range"));
-        assert_eq!(&Address { row: 1, col: 1}, ws.state.range_select.original_location
-            .as_ref().expect("Expected an original location"));
-        assert_eq!(0, ws.state.range_select.original_sheet.
-            expect("Expected an original sheet"));
-        assert_eq!(Some(&Modality::RangeSelect), ws.state.modality_stack.iter().last());
+        assert_eq!(
+            &bot_right_addr,
+            ws.state
+                .range_select
+                .end
+                .as_ref()
+                .expect("Didn't find a start of range")
+        );
+        assert_eq!(
+            &Address { row: 1, col: 1 },
+            ws.state
+                .range_select
+                .original_location
+                .as_ref()
+                .expect("Expected an original location")
+        );
+        assert_eq!(
+            0,
+            ws.state
+                .range_select
+                .original_sheet
+                .expect("Expected an original sheet")
+        );
+        assert_eq!(
+            Some(&Modality::RangeSelect),
+            ws.state.modality_stack.iter().last()
+        );
         dbg!(ws.state.range_select.get_range());
-        $script.run(&mut ws)
-            .expect("failed to run script");
+        $script.run(&mut ws).expect("failed to run script");
         assert!(ws.state.clipboard.is_some());
         match ws.state.clipboard.unwrap() {
             crate::ui::ClipboardContents::Cell(_) => assert!(false, "Not rows in Clipboard"),
             crate::ui::ClipboardContents::Range(rows) => {
-                assert_eq!(vec![
-                    vec!["top_left".to_string(), "".to_string(), "".to_string()],
-                    vec!["".to_string(), "".to_string(), "".to_string()],
-                    vec!["".to_string(), "".to_string(), "bot_right".to_string()],
-                ], rows);
-            },
+                assert_eq!(
+                    vec![
+                        vec!["top_left".to_string(), "".to_string(), "".to_string()],
+                        vec!["".to_string(), "".to_string(), "".to_string()],
+                        vec!["".to_string(), "".to_string(), "bot_right".to_string()],
+                    ],
+                    rows
+                );
+            }
         }
-        assert_eq!(Some(&Modality::Navigate), ws.state.modality_stack.iter().last());
+        assert_eq!(
+            Some(&Modality::Navigate),
+            ws.state.modality_stack.iter().last()
+        );
     }};
 }
 
@@ -1140,7 +1175,9 @@ fn test_range_select_copy_capital_c() {
 #[test]
 fn test_extend_to_range() {
     let mut ws = new_workspace();
-    ws.book.edit_current_cell("=B1+1").expect("Failed to edit cell");
+    ws.book
+        .edit_current_cell("=B1+1")
+        .expect("Failed to edit cell");
     ws.book.evaluate();
     script()
         .char('v')
@@ -1148,7 +1185,9 @@ fn test_extend_to_range() {
         .char('x')
         .run(&mut ws)
         .expect("Unable to run script");
-    let extended_cell = ws.book.get_cell_addr_contents(&Address { row: 2, col: 1 })
+    let extended_cell = ws
+        .book
+        .get_cell_addr_contents(&Address { row: 2, col: 1 })
         .expect("Failed to get cell contents");
     assert_eq!("=B2+1".to_string(), extended_cell);
 }
@@ -1166,8 +1205,18 @@ fn test_color_cells() {
         .expect("Unable to run script");
     for ri in 1..=3 {
         for ci in 1..=3 {
-            let style = ws.book.get_cell_style(ws.book.current_sheet, &Address { row: ri, col: ci }).expect("failed to get style");
-            assert_eq!("#800000", style.fill.bg_color.expect(&format!("No background color set for {}:{}", ri, ci)).as_str());
+            let style = ws
+                .book
+                .get_cell_style(ws.book.current_sheet, &Address { row: ri, col: ci })
+                .expect("failed to get style");
+            assert_eq!(
+                "#800000",
+                style
+                    .fill
+                    .bg_color
+                    .expect(&format!("No background color set for {}:{}", ri, ci))
+                    .as_str()
+            );
         }
     }
 }