diff --git a/4coder_API/4coder_types.h b/4coder_API/4coder_types.h
index f8a22314..85be328a 100644
--- a/4coder_API/4coder_types.h
+++ b/4coder_API/4coder_types.h
@@ -888,6 +888,11 @@ STRUCT Face_Description{
     b32 hinting;
 };
 
+STRUCT Face_Metrics{
+    f32 line_height;
+    f32 typical_character_width;
+};
+
 /* DOC(A Buffer_Batch_Edit_Type is a type of batch operation.) */
 ENUM(i32, Buffer_Batch_Edit_Type){
     /* DOC(The BatchEdit_Normal operation is always correct but does the most work if there are tokens to correct.) */
diff --git a/4coder_default_hooks.cpp b/4coder_default_hooks.cpp
index e39819fe..91133b19 100644
--- a/4coder_default_hooks.cpp
+++ b/4coder_default_hooks.cpp
@@ -384,6 +384,9 @@ default_buffer_render_caller(Application_Links *app, Frame_Info frame_info, View
             b32 showing_file_bar = false;
             if (view_get_setting(app, view_id, ViewSetting_ShowFileBar, &showing_file_bar)){
                 if (showing_file_bar){
+                    Face_ID face_id = 0;
+                    get_face_id(app, view.buffer_id, &face_id);
+                    
                     Rect_f32 bar = r_cursor;
                     bar.y1 = bar.y0 + line_height + 2.f;
                     r_cursor.y0 = bar.y1;
@@ -396,20 +399,14 @@ default_buffer_render_caller(Application_Links *app, Frame_Info frame_info, View
                     Temp_Memory_Arena temp = begin_temp_memory(arena);
                     
                     Fancy_String_List list = {};
-#if 0
-                    // NOTE(allen): this is just an example of using base names instead of buffer names.
-                    i32 buffer_name_size = 0;
-                    buffer_get_base_buffer_name(app, buffer.buffer_id, 0, &buffer_name_size);
-                    char *space = push_array(arena, char, buffer_name_size);
-                    String string = make_string_cap(space, 0, buffer_name_size);
-                    buffer_get_base_buffer_name(app, buffer.buffer_id, &string, 0);
-                    push_fancy_string (arena, &list, base_color, string);
-#else
-                    push_fancy_string (arena, &list, base_color, make_string(buffer.buffer_name, buffer.buffer_name_len));
-#endif
-                    
+                    push_fancy_string(arena, &list, base_color, make_string(buffer.buffer_name, buffer.buffer_name_len));
                     push_fancy_stringf(arena, &list, base_color, " - L#%d C#%d -", view.cursor.line, view.cursor.character);
                     
+                    Face_Metrics face_metrics = {};
+                    get_face_metrics(app, face_id, &face_metrics);
+                    push_fancy_stringf(arena, &list, base_color, " LH: %f; TCW: %f-",
+                                       face_metrics.line_height, face_metrics.typical_character_width);
+                    
                     b32 is_dos_mode = false;
                     if (buffer_get_setting(app, buffer.buffer_id, BufferSetting_Eol, &is_dos_mode)){
                         if (is_dos_mode){
@@ -439,10 +436,8 @@ default_buffer_render_caller(Application_Links *app, Frame_Info frame_info, View
                         push_fancy_string(arena, &list, pop2_color, str);
                     }
                     
-                    Face_ID font_id = 0;
-                    get_face_id(app, view.buffer_id, &font_id);
                     Vec2 p = bar.p0 + V2(0.f, 2.f);
-                    draw_fancy_string(app, font_id, list.first, p, Stag_Default, 0);
+                    draw_fancy_string(app, face_id, list.first, p, Stag_Default, 0);
                     
                     end_temp_memory(temp);
                 }
diff --git a/4coder_generated/app_functions.h b/4coder_generated/app_functions.h
index 8febb6d8..47c47f53 100644
--- a/4coder_generated/app_functions.h
+++ b/4coder_generated/app_functions.h
@@ -1,7 +1,7 @@
 struct Application_Links;
 #define GLOBAL_SET_SETTING_SIG(n) b32 n(Application_Links *app, Global_Setting_ID setting, i32 value)
 #define GLOBAL_SET_MAPPING_SIG(n) b32 n(Application_Links *app, void *data, i32 size)
-#define GLOBAL_GET_SCREEN_RECTANGLE_SIG(n) b32 n(Application_Links *app, Rect_i32 *rect_out)
+#define GLOBAL_GET_SCREEN_RECTANGLE_SIG(n) b32 n(Application_Links *app, Rect_f32 *rect_out)
 #define CONTEXT_GET_ARENA_SIG(n) Arena* n(Application_Links *app)
 #define CREATE_CHILD_PROCESS_SIG(n) b32 n(Application_Links *app, String path, String command, Child_Process_ID *child_process_id_out)
 #define CHILD_PROCESS_SET_TARGET_BUFFER_SIG(n) b32 n(Application_Links *app, Child_Process_ID child_process_id, Buffer_ID buffer_id, Child_Process_Set_Target_Flags flags)
@@ -131,6 +131,7 @@ struct Application_Links;
 #define GLOBAL_HISTORY_EDIT_GROUP_END_SIG(n) void n(Application_Links *app)
 #define BUFFER_SET_FACE_SIG(n) b32 n(Application_Links *app, Buffer_ID buffer_id, Face_ID id)
 #define GET_FACE_DESCRIPTION_SIG(n) Face_Description n(Application_Links *app, Face_ID id)
+#define GET_FACE_METRICS_SIG(n) b32 n(Application_Links *app, Face_ID face_id, Face_Metrics *metrics_out)
 #define GET_FACE_ID_SIG(n) b32 n(Application_Links *app, Buffer_ID buffer_id, Face_ID *face_id_out)
 #define TRY_CREATE_NEW_FACE_SIG(n) Face_ID n(Application_Links *app, Face_Description *description)
 #define TRY_MODIFY_FACE_SIG(n) b32 n(Application_Links *app, Face_ID id, Face_Description *description)
@@ -305,6 +306,7 @@ typedef GLOBAL_HISTORY_EDIT_GROUP_BEGIN_SIG(Global_History_Edit_Group_Begin_Func
 typedef GLOBAL_HISTORY_EDIT_GROUP_END_SIG(Global_History_Edit_Group_End_Function);
 typedef BUFFER_SET_FACE_SIG(Buffer_Set_Face_Function);
 typedef GET_FACE_DESCRIPTION_SIG(Get_Face_Description_Function);
+typedef GET_FACE_METRICS_SIG(Get_Face_Metrics_Function);
 typedef GET_FACE_ID_SIG(Get_Face_ID_Function);
 typedef TRY_CREATE_NEW_FACE_SIG(Try_Create_New_Face_Function);
 typedef TRY_MODIFY_FACE_SIG(Try_Modify_Face_Function);
@@ -481,6 +483,7 @@ Global_History_Edit_Group_Begin_Function *global_history_edit_group_begin;
 Global_History_Edit_Group_End_Function *global_history_edit_group_end;
 Buffer_Set_Face_Function *buffer_set_face;
 Get_Face_Description_Function *get_face_description;
+Get_Face_Metrics_Function *get_face_metrics;
 Get_Face_ID_Function *get_face_id;
 Try_Create_New_Face_Function *try_create_new_face;
 Try_Modify_Face_Function *try_modify_face;
@@ -656,6 +659,7 @@ Global_History_Edit_Group_Begin_Function *global_history_edit_group_begin_;
 Global_History_Edit_Group_End_Function *global_history_edit_group_end_;
 Buffer_Set_Face_Function *buffer_set_face_;
 Get_Face_Description_Function *get_face_description_;
+Get_Face_Metrics_Function *get_face_metrics_;
 Get_Face_ID_Function *get_face_id_;
 Try_Create_New_Face_Function *try_create_new_face_;
 Try_Modify_Face_Function *try_modify_face_;
@@ -839,6 +843,7 @@ app_links->global_history_edit_group_begin_ = Global_History_Edit_Group_Begin;\
 app_links->global_history_edit_group_end_ = Global_History_Edit_Group_End;\
 app_links->buffer_set_face_ = Buffer_Set_Face;\
 app_links->get_face_description_ = Get_Face_Description;\
+app_links->get_face_metrics_ = Get_Face_Metrics;\
 app_links->get_face_id_ = Get_Face_ID;\
 app_links->try_create_new_face_ = Try_Create_New_Face;\
 app_links->try_modify_face_ = Try_Modify_Face;\
@@ -884,7 +889,7 @@ app_links->get_view_visible_range_ = Get_View_Visible_Range;} while(false)
 #if defined(ALLOW_DEP_4CODER)
 static b32 global_set_setting(Application_Links *app, Global_Setting_ID setting, i32 value){return(app->global_set_setting(app, setting, value));}
 static b32 global_set_mapping(Application_Links *app, void *data, i32 size){return(app->global_set_mapping(app, data, size));}
-static b32 global_get_screen_rectangle(Application_Links *app, Rect_i32 *rect_out){return(app->global_get_screen_rectangle(app, rect_out));}
+static b32 global_get_screen_rectangle(Application_Links *app, Rect_f32 *rect_out){return(app->global_get_screen_rectangle(app, rect_out));}
 static Arena* context_get_arena(Application_Links *app){return(app->context_get_arena(app));}
 static b32 create_child_process(Application_Links *app, String path, String command, Child_Process_ID *child_process_id_out){return(app->create_child_process(app, path, command, child_process_id_out));}
 static b32 child_process_set_target_buffer(Application_Links *app, Child_Process_ID child_process_id, Buffer_ID buffer_id, Child_Process_Set_Target_Flags flags){return(app->child_process_set_target_buffer(app, child_process_id, buffer_id, flags));}
@@ -1014,6 +1019,7 @@ static void global_history_edit_group_begin(Application_Links *app){(app->global
 static void global_history_edit_group_end(Application_Links *app){(app->global_history_edit_group_end(app));}
 static b32 buffer_set_face(Application_Links *app, Buffer_ID buffer_id, Face_ID id){return(app->buffer_set_face(app, buffer_id, id));}
 static Face_Description get_face_description(Application_Links *app, Face_ID id){return(app->get_face_description(app, id));}
+static b32 get_face_metrics(Application_Links *app, Face_ID face_id, Face_Metrics *metrics_out){return(app->get_face_metrics(app, face_id, metrics_out));}
 static b32 get_face_id(Application_Links *app, Buffer_ID buffer_id, Face_ID *face_id_out){return(app->get_face_id(app, buffer_id, face_id_out));}
 static Face_ID try_create_new_face(Application_Links *app, Face_Description *description){return(app->try_create_new_face(app, description));}
 static b32 try_modify_face(Application_Links *app, Face_ID id, Face_Description *description){return(app->try_modify_face(app, id, description));}
@@ -1059,7 +1065,7 @@ static Range get_view_visible_range(Application_Links *app, View_ID view_id){ret
 #else
 static b32 global_set_setting(Application_Links *app, Global_Setting_ID setting, i32 value){return(app->global_set_setting_(app, setting, value));}
 static b32 global_set_mapping(Application_Links *app, void *data, i32 size){return(app->global_set_mapping_(app, data, size));}
-static b32 global_get_screen_rectangle(Application_Links *app, Rect_i32 *rect_out){return(app->global_get_screen_rectangle_(app, rect_out));}
+static b32 global_get_screen_rectangle(Application_Links *app, Rect_f32 *rect_out){return(app->global_get_screen_rectangle_(app, rect_out));}
 static Arena* context_get_arena(Application_Links *app){return(app->context_get_arena_(app));}
 static b32 create_child_process(Application_Links *app, String path, String command, Child_Process_ID *child_process_id_out){return(app->create_child_process_(app, path, command, child_process_id_out));}
 static b32 child_process_set_target_buffer(Application_Links *app, Child_Process_ID child_process_id, Buffer_ID buffer_id, Child_Process_Set_Target_Flags flags){return(app->child_process_set_target_buffer_(app, child_process_id, buffer_id, flags));}
@@ -1189,6 +1195,7 @@ static void global_history_edit_group_begin(Application_Links *app){(app->global
 static void global_history_edit_group_end(Application_Links *app){(app->global_history_edit_group_end_(app));}
 static b32 buffer_set_face(Application_Links *app, Buffer_ID buffer_id, Face_ID id){return(app->buffer_set_face_(app, buffer_id, id));}
 static Face_Description get_face_description(Application_Links *app, Face_ID id){return(app->get_face_description_(app, id));}
+static b32 get_face_metrics(Application_Links *app, Face_ID face_id, Face_Metrics *metrics_out){return(app->get_face_metrics_(app, face_id, metrics_out));}
 static b32 get_face_id(Application_Links *app, Buffer_ID buffer_id, Face_ID *face_id_out){return(app->get_face_id_(app, buffer_id, face_id_out));}
 static Face_ID try_create_new_face(Application_Links *app, Face_Description *description){return(app->try_create_new_face_(app, description));}
 static b32 try_modify_face(Application_Links *app, Face_ID id, Face_Description *description){return(app->try_modify_face_(app, id, description));}
diff --git a/4ed_api_implementation.cpp b/4ed_api_implementation.cpp
index 46897f24..004a1cb5 100644
--- a/4ed_api_implementation.cpp
+++ b/4ed_api_implementation.cpp
@@ -194,11 +194,10 @@ DOC(Dumps away the previous mappings and instantiates the mappings described in
 }
 
 API_EXPORT b32
-Global_Get_Screen_Rectangle(Application_Links *app, Rect_i32 *rect_out){
+Global_Get_Screen_Rectangle(Application_Links *app, Rect_f32 *rect_out){
     Models *models = (Models*)app->cmd_context;
-    Vec2_i32 dim = layout_get_root_size(&models->layout);
-    rect_out->p0 = V2i32(0, 0);
-    rect_out->p1 = dim;
+    rect_out->p0 = V2(0, 0);
+    rect_out->p1 = V2(layout_get_root_size(&models->layout));
     return(true);
 }
 
@@ -4016,6 +4015,22 @@ DOC_SEE(Face_Description)
     return(description);
 }
 
+API_EXPORT b32
+Get_Face_Metrics(Application_Links *app, Face_ID face_id, Face_Metrics *metrics_out){
+    Models *models = (Models*)app->cmd_context;
+    System_Functions *system = models->system;
+    b32 result = false;
+    if (face_id != 0){
+        Font_Pointers font = system->font.get_pointers_by_id(face_id);
+        if (font.valid){
+            metrics_out->line_height = (f32)font.metrics->height;
+            metrics_out->typical_character_width = font.metrics->sub_advances[1];
+            result = true;
+        }
+    }
+    return(result);
+}
+
 // TODO(allen): redocument
 API_EXPORT b32
 Get_Face_ID(Application_Links *app, Buffer_ID buffer_id, Face_ID *face_id_out)