6 files changed, 31 insertions, 18 deletions
diff --git a/src/config/theme/sheetview.rs b/src/config/theme/sheetview.rs
index bcd53e1..af0b585 100644
--- a/src/config/theme/sheetview.rs
+++ b/src/config/theme/sheetview.rs
@@ -10,6 +10,7 @@ pub struct SheetViewTheme {
     pub cursor: EvalTo<Style, CellRef>,
     pub selection: EvalTo<Style, CellRef>,
     pub cell: EvalTo<Style, CellRef>,
+    pub background: EvalTo<Style, ()>,
 }
 
 impl SheetViewTheme {
@@ -18,6 +19,7 @@ impl SheetViewTheme {
             cursor: EvalTo::Value(Style::new().fg(Color::Black).bg(Color::White)),
             selection: EvalTo::Value(Style::new().fg(Color::White).bg(Color::DarkGray)),
             cell: EvalTo::Value(Style::new().fg(Color::White).bg(Color::Black)),
+            background: EvalTo::Value(Style::new().bg(Color::Black)),
         }
     }
 }
@@ -44,17 +46,21 @@ impl UserData for SheetViewTheme {
         });
 
         fields.add_field_function_get("selection", |_, _| Ok(cfg!().selection.clone()));
-
         fields.add_field_function_set("selection", |_, _, pair: EvalTo<Style, CellRef>| {
             cfg_mut!().selection = pair;
             Ok(())
         });
 
         fields.add_field_function_get("cell", |_, _| Ok(cfg!().cell.clone()));
-
         fields.add_field_function_set("cell", |_, _, cell: EvalTo<Style, CellRef>| {
             cfg_mut!().cell = cell;
             Ok(())
         });
+
+        fields.add_field_function_get("background", |_, _| Ok(cfg!().background.clone()));
+        fields.add_field_function_set("background", |_, _, background: EvalTo<Style, ()>| {
+            cfg_mut!().background = background;
+            Ok(())
+        });
     }
 }
diff --git a/src/lua/evalsto.rs b/src/lua/evalsto.rs
index 6d8ab29..d72638e 100644
--- a/src/lua/evalsto.rs
+++ b/src/lua/evalsto.rs
@@ -1,6 +1,6 @@
 use std::{fmt, marker::PhantomData, sync::Arc};
 
-use mlua::{FromLua, IntoLua, Lua, Result, Value};
+use mlua::{FromLua, IntoLua, IntoLuaMulti, Lua, Result, Value};
 
 use crate::lua::ownedfunction::OwnedFunction;
 
@@ -14,7 +14,7 @@ impl<T, A> EvalTo<T, A> {
     pub fn get<'lua>(&'lua self, args: A, lua: &'lua Lua) -> Result<T>
     where
         T: FromLua<'lua> + Clone,
-        A: IntoLua<'lua>,
+        A: IntoLuaMulti<'lua>,
     {
         match self {
             EvalTo::Function(value, _) => {
@@ -33,7 +33,7 @@ impl<T, A> EvalTo<T, A> {
 impl<'lua, T, A> FromLua<'lua> for EvalTo<T, A>
 where
     T: FromLua<'lua> + Clone,
-    A: IntoLua<'lua>,
+    A: IntoLuaMulti<'lua>,
 {
     fn from_lua(
         value: mlua::prelude::LuaValue<'lua>,
@@ -53,7 +53,7 @@ where
 impl<'lua, T, A> IntoLua<'lua> for EvalTo<T, A>
 where
     T: FromLua<'lua> + Clone + IntoLua<'lua>,
-    A: IntoLua<'lua>,
+    A: IntoLuaMulti<'lua>,
 {
     fn into_lua(self, lua: &'lua mlua::prelude::Lua) -> Result<Value<'lua>> {
         match self {
@@ -74,7 +74,7 @@ where
 
 impl<T, A> fmt::Debug for EvalTo<T, A>
 where
-    T: fmt::Debug
+    T: fmt::Debug,
 {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
diff --git a/src/sheet/luaref.rs b/src/sheet/luaref.rs
index fa4b8f9..5fb6bed 100644
--- a/src/sheet/luaref.rs
+++ b/src/sheet/luaref.rs
@@ -1,7 +1,7 @@
 use crate::state::GlobalState;
 
 use super::{
-    foreach::LuaForEach,
+    map::LuaMap,
     register::{Register, SheetId},
 };
 use mlua::prelude::*;
@@ -41,7 +41,7 @@ impl LuaUserData for SheetLuaRef {
             }
         });
 
-        methods.add_method_mut("foreach", |_, luaref, func: LuaFunction| {
+        methods.add_method_mut("map", |_, luaref, func: LuaFunction| {
             let range: Vec<_> = {
                 let state = GlobalState::instance();
                 let lock = state.sheetview.active_sheet().unwrap();
@@ -66,7 +66,7 @@ impl LuaUserData for SheetLuaRef {
                 }
             };
 
-            Register::get(luaref.id).unwrap().lua_foreach(func, range)
+            Register::get(luaref.id).unwrap().lua_map(func, range)
         })
     }
 }
diff --git a/src/sheet/foreach.rs b/src/sheet/map.rs
index a2a3f90..09209a3 100644
--- a/src/sheet/foreach.rs
+++ b/src/sheet/map.rs
@@ -4,16 +4,16 @@ use mlua::prelude::*;
 
 use super::{cell::Cell, Sheet};
 
-pub trait LuaForEach {
-    fn lua_foreach<'lua>(
+pub trait LuaMap {
+    fn lua_map<'lua>(
         &self,
         func: LuaFunction<'lua>,
         range: Vec<(usize, usize)>,
     ) -> Result<(), LuaError>;
 }
 
-impl LuaForEach for Arc<RwLock<Sheet>> {
-    fn lua_foreach<'lua>(
+impl LuaMap for Arc<RwLock<Sheet>> {
+    fn lua_map<'lua>(
         &self,
         func: LuaFunction<'lua>,
         range: Vec<(usize, usize)>,
diff --git a/src/sheet/mod.rs b/src/sheet/mod.rs
index 5f28e07..ffaec94 100644
--- a/src/sheet/mod.rs
+++ b/src/sheet/mod.rs
@@ -1,7 +1,7 @@
 use cell::{Cell, CellRef};
 
 pub mod cell;
-pub mod foreach;
+pub mod map;
 pub mod register;
 pub mod luaref;
 
diff --git a/src/widgets/sheetview/mod.rs b/src/widgets/sheetview/mod.rs
index aac2080..2239a0b 100644
--- a/src/widgets/sheetview/mod.rs
+++ b/src/widgets/sheetview/mod.rs
@@ -3,7 +3,7 @@ use ratatui::{
     prelude::*,
     style::Stylize,
     text::ToLine,
-    widgets::Widget,
+    widgets::{Paragraph, Widget},
 };
 
 use crate::{
@@ -62,10 +62,10 @@ impl SheetView {
     fn open_editor(&self) {
         let mut state = GlobalState::instance_mut();
         state.editor.buffer.set_lines_from_string(
-r#"require('neosheet')
+            r#"require('neosheet')
   .state
   .view
-  .active:foreach(function(cell)
+  .active:map(function(cell)
     return ""
 end)"#,
         );
@@ -188,6 +188,13 @@ impl Widget for &mut SheetView {
             self.scroll.1 = cursor.x();
         }
 
+        theme
+            .background
+            .get((), &lua::get())
+            .unwrap_or_default()
+            .apply(Paragraph::default())
+            .render(area, buf);
+
         for row in 0..viewport_rows {
             for column in 0..(viewport_columns + 1) {
                 let (cell_pos_y, cell_pos_x) = (row + self.scroll.0, column + self.scroll.1);