diff --git a/wwwroot/approval_instance.ui b/wwwroot/approval_instance.ui
index 2a2bd31..6dccb9c 100644
--- a/wwwroot/approval_instance.ui
+++ b/wwwroot/approval_instance.ui
@@ -32,7 +32,7 @@
                             "options": {
                                 "label": "发起审批",
                                 "onclick": "openDialog('newInstanceDialog')",
-                                "backgroundColor": "#007bff",
+                                "bgcolor": "#007bff",
                                 "color": "#fff",
                                 "border": "none",
                                 "padding": "8px 16px",
@@ -156,7 +156,7 @@
                                     "options": {
                                         "label": "提交",
                                         "onclick": "submitForm('newInstanceForm', '/main/workflow_approval/api/instance_create.dspy', 'newInstanceDialog', null)",
-                                        "backgroundColor": "#007bff",
+                                        "bgcolor": "#007bff",
                                         "color": "#fff"
                                     }
                                 }
diff --git a/wwwroot/approval_task.ui b/wwwroot/approval_task.ui
index ee583ab..4ebc777 100644
--- a/wwwroot/approval_task.ui
+++ b/wwwroot/approval_task.ui
@@ -115,7 +115,7 @@
                                     "options": {
                                         "label": "拒绝",
                                         "onclick": "submitForm('approveForm', '/main/workflow_approval/api/task_reject.dspy', 'approveDialog', null)",
-                                        "backgroundColor": "#dc3545",
+                                        "bgcolor": "#dc3545",
                                         "color": "#fff"
                                     }
                                 },
@@ -124,7 +124,7 @@
                                     "options": {
                                         "label": "批准",
                                         "onclick": "submitForm('approveForm', '/main/workflow_approval/api/task_approve.dspy', 'approveDialog', null)",
-                                        "backgroundColor": "#28a745",
+                                        "bgcolor": "#28a745",
                                         "color": "#fff"
                                     }
                                 }
@@ -265,7 +265,7 @@
                                             "options": {
                                                 "label": "去审批",
                                                 "onclick": "closeDialog('taskDetailDialog'); openDialog('approveDialog'); setDialogField('approveDialog', 'task_id', getDialogField('taskDetailDialog', 'task_id')); setDialogField('approveDialog', 'task_title', getDialogField('taskDetailDialog', 'task_title'))",
-                                                "backgroundColor": "#007bff",
+                                                "bgcolor": "#007bff",
                                                 "color": "#fff"
                                             }
                                         }
diff --git a/wwwroot/approval_task_detail.ui b/wwwroot/approval_task_detail.ui
index 8930cab..b837f4a 100644
--- a/wwwroot/approval_task_detail.ui
+++ b/wwwroot/approval_task_detail.ui
@@ -47,7 +47,7 @@
                     "options": {
                         "onClick": "approve_task",
                         "label": "批准",
-                        "backgroundColor": "#28a745",
+                        "bgcolor": "#28a745",
                         "color": "white",
                         "flex": "1"
                     }
@@ -57,7 +57,7 @@
                     "options": {
                         "onClick": "reject_task",
                         "label": "拒绝",
-                        "backgroundColor": "#dc3545",
+                        "bgcolor": "#dc3545",
                         "color": "white",
                         "flex": "1"
                     }
diff --git a/wwwroot/index.ui b/wwwroot/index.ui
index 1b7ae06..945011e 100644
--- a/wwwroot/index.ui
+++ b/wwwroot/index.ui
@@ -4,7 +4,7 @@
         "width": "100%",
         "height": "100%",
         "padding": "20px",
-        "backgroundColor": "#F9FAFB"
+        "bgcolor": "#F9FAFB"
     },
     "subwidgets": [
         {
@@ -27,7 +27,7 @@
                 {
                     "widgettype": "VBox",
                     "options": {
-                        "backgroundColor": "#FFFFFF",
+                        "bgcolor": "#FFFFFF",
                         "borderRadius": "8px",
                         "padding": "20px",
                         "boxShadow": "0 1px 3px rgba(0,0,0,0.1)",
@@ -69,7 +69,7 @@
                 {
                     "widgettype": "VBox",
                     "options": {
-                        "backgroundColor": "#FFFFFF",
+                        "bgcolor": "#FFFFFF",
                         "borderRadius": "8px",
                         "padding": "20px",
                         "boxShadow": "0 1px 3px rgba(0,0,0,0.1)",
@@ -111,7 +111,7 @@
                 {
                     "widgettype": "VBox",
                     "options": {
-                        "backgroundColor": "#FFFFFF",
+                        "bgcolor": "#FFFFFF",
                         "borderRadius": "8px",
                         "padding": "20px",
                         "boxShadow": "0 1px 3px rgba(0,0,0,0.1)",
@@ -159,7 +159,7 @@
                 "width": "100%",
                 "flex": "1",
                 "marginTop": "20px",
-                "backgroundColor": "#FFFFFF",
+                "bgcolor": "#FFFFFF",
                 "borderRadius": "8px",
                 "padding": "20px",
                 "boxShadow": "0 1px 3px rgba(0,0,0,0.1)"
diff --git a/wwwroot/mobile_base.ui b/wwwroot/mobile_base.ui
index 397a74f..00ecbee 100644
--- a/wwwroot/mobile_base.ui
+++ b/wwwroot/mobile_base.ui
@@ -26,7 +26,7 @@
                     "options": {
                         "onClick": "goto('workflow_approval/approval_instance/create.ui')",
                         "label": "发起审批",
-                        "backgroundColor": "#007bff",
+                        "bgcolor": "#007bff",
                         "color": "white",
                         "border": "none",
                         "padding": "8px 16px",