diff --git a/core/src/buffer.rs b/core/src/buffer.rs
index 983510db..2f4245b9 100644
--- a/core/src/buffer.rs
+++ b/core/src/buffer.rs
@@ -11,8 +11,8 @@
 use druid::{Env, PaintCtx};
 use git2::Repository;
 use language::{new_highlight_config, new_parser, LapceLanguage};
-use lsp_types::SemanticTokensLegend;
 use lsp_types::SemanticTokensServerCapabilities;
+use lsp_types::{CallHierarchyOptions, SemanticTokensLegend};
 use lsp_types::{
     CodeActionResponse, Position, Range, TextDocumentContentChangeEvent,
 };
@@ -200,6 +200,7 @@ pub struct BufferNew {
     pub loaded: bool,
     pub local: bool,
     update_sender: Arc<Sender<UpdateEvent>>,
+    pub line_changes: HashMap<usize, char>,
 
     revs: Vec<Revision>,
     cur_undo: usize,
@@ -241,6 +242,7 @@ pub fn new(path: PathBuf, update_sender: Arc<Sender<UpdateEvent>>) -> Self {
             dirty: false,
             update_sender,
             local: false,
+            line_changes: HashMap::new(),
 
             revs: vec![Revision {
                 max_undo_so_far: 0,
diff --git a/core/src/command.rs b/core/src/command.rs
index 475a6518..e8b39f98 100644
--- a/core/src/command.rs
+++ b/core/src/command.rs
@@ -274,6 +274,7 @@ pub enum LapceUICommand {
         tree: Tree,
     },
     CenterOfWindow,
+    UpdateBufferLineChanges(BufferId, u64, HashMap<usize, char>),
     UpdateLineChanges(BufferId),
     PublishDiagnostics(PublishDiagnosticsParams),
     UpdateDiffFiles(Vec<PathBuf>),
diff --git a/core/src/editor.rs b/core/src/editor.rs
index 72bd9472..e2d8c9be 100644
--- a/core/src/editor.rs
+++ b/core/src/editor.rs
@@ -854,7 +854,7 @@ fn paint_code_actions_hint(
                 let height = 16.0;
                 let rect =
                     Size::new(width, height).to_rect().with_origin(Point::new(
-                        self.width + 5.0,
+                        self.width + 7.6171875 + 3.0,
                         (line_height - height) / 2.0 + line_height * line as f64
                             - data.editor.scroll_offset.y,
                     ));
@@ -930,7 +930,7 @@ fn layout(
         let last_line = data.buffer.last_line() + 1;
         let width = 7.6171875;
         self.width = (width * last_line.to_string().len() as f64).ceil();
-        let width = self.width + 26.0;
+        let width = self.width + 16.0 + width * 2.0;
         Size::new(width, bc.max().height)
     }
 
@@ -974,6 +974,33 @@ fn paint(&mut self, ctx: &mut PaintCtx, data: &LapceEditorViewData, env: &Env) {
                 .build()
                 .unwrap();
             ctx.draw_text(&text_layout, pos);
+
+            if let Some(line_change) = data.buffer.line_changes.get(&line) {
+                let x = self.width + width;
+                let y = line as f64 * line_height - scroll_offset.y;
+                let origin = Point::new(x, y);
+                let size = Size::new(3.0, line_height);
+                let rect = Rect::ZERO.with_origin(origin).with_size(size);
+                match line_change {
+                    'm' => {
+                        ctx.fill(rect, &Color::rgba8(1, 132, 188, 180));
+                    }
+                    '+' => {
+                        ctx.fill(rect, &Color::rgba8(80, 161, 79, 180));
+                    }
+                    '-' => {
+                        let size = Size::new(3.0, 10.0);
+                        let x = self.width + width;
+                        let y = line as f64 * line_height
+                            - size.height / 2.0
+                            - scroll_offset.y;
+                        let origin = Point::new(x, y);
+                        let rect = Rect::ZERO.with_origin(origin).with_size(size);
+                        ctx.fill(rect, &Color::rgba8(228, 86, 73, 180));
+                    }
+                    _ => {}
+                }
+            }
         }
 
         if *data.main_split.active == self.view_id {
diff --git a/core/src/proxy.rs b/core/src/proxy.rs
index 162419e1..d4745b01 100644
--- a/core/src/proxy.rs
+++ b/core/src/proxy.rs
@@ -572,7 +572,17 @@ fn handle_notification(
                 buffer_id,
                 line_changes,
                 rev,
-            } => {}
+            } => {
+                self.event_sink.submit_command(
+                    LAPCE_UI_COMMAND,
+                    LapceUICommand::UpdateBufferLineChanges(
+                        buffer_id,
+                        rev,
+                        line_changes,
+                    ),
+                    Target::Widget(self.tab_id),
+                );
+            }
             Notification::ReloadBuffer {
                 buffer_id,
                 new_content,
diff --git a/core/src/tab.rs b/core/src/tab.rs
index d9109c8e..54755cfe 100644
--- a/core/src/tab.rs
+++ b/core/src/tab.rs
@@ -346,6 +346,22 @@ fn event(
                         }
                         ctx.set_handled();
                     }
+                    LapceUICommand::UpdateBufferLineChanges(
+                        id,
+                        rev,
+                        line_changes,
+                    ) => {
+                        for (_, buffer) in data.main_split.open_files.iter_mut() {
+                            if &buffer.id == id {
+                                if buffer.rev == *rev {
+                                    let buffer = Arc::make_mut(buffer);
+                                    buffer.line_changes = line_changes.to_owned();
+                                }
+                                break;
+                            }
+                        }
+                        ctx.set_handled();
+                    }
                     LapceUICommand::UpdateSemanticTokens(id, path, rev, tokens) => {
                         let buffer =
                             data.main_split.open_files.get_mut(path).unwrap();