Align status bar battery icon with UI spec.

Use a rounded battery shell with proportional fill and smaller centered percentage text to match the design reference.

Co-authored-by: Cursor <cursoragent@cursor.com>

device/LCD_ILI9341/Drv_ILI9341_Lcd_App.c

@@ -1835,57 +1835,71 @@ void Draw_Volume_Bar(uint16_t x, uint16_t y, uint8_t volume_level,uint8_t scale,
 
 
 /**
- * @brief 绘制电池图标（细线框 + 内填充 + 百分比，贴近状态栏需求图）
+ * @brief 绘制电池图标（圆角线框 + 内填充 + 百分比，对齐需求图）
- * @param x/y: 左上角坐标
- * @param battery_percent: 0-100，填充宽度与百分比一致
- * @param scale: 缩放倍数
- * @param border_color / bg_color / fill_color: 边框、内底、填充色
  */
 void Draw_Battery_Icon(uint16_t x, uint16_t y, uint8_t battery_percent,uint8_t scale, uint16_t border_color, uint16_t bg_color, uint16_t fill_color)
 {
-    uint16_t bat_w = 22 * scale;    /* 主体宽度 */
+    uint16_t bat_w = 24 * scale;
-    uint16_t bat_h = 12 * scale;    /* 主体高度（更扁） */
+    uint16_t bat_h = 11 * scale;
-    uint16_t fill_gap = 2 * scale;  /* 填充与边框间距 */
+    uint8_t  round_r = 2 * scale;
-    uint8_t Info[40];
+    uint8_t  stroke = 1 * scale;
+    uint16_t fill_gap = 2 * scale;
+    uint8_t  text_size = 12 * scale;
+    uint8_t  Info[40];
     uint16_t pole_w = 2 * scale;
-    uint16_t pole_h = 6 * scale;
+    uint16_t pole_h = 5 * scale;
-    uint16_t pole_x = x + bat_w;
+    uint16_t pole_x;
-    uint16_t pole_y = y + (bat_h - pole_h) / 2;
+    uint16_t pole_y;
+    uint16_t inner_w;
+    uint16_t inner_h;
     uint16_t fill_w;
-    uint16_t fill_h;
     uint16_t text_x;
+    uint16_t text_y;
+    uint16_t clear_h;
 
-    /* 清到右缘，避免百分比位数变化残留 */
+    if(battery_percent > 100)
-    LCD_FillByColor(x, y, 240, y + ((bat_h > 16) ? bat_h : 16), BLACK);
-
-    if(battery_percent > 100) battery_percent = 100;
-
-    fill_w = (bat_w - 2 * fill_gap) * battery_percent / 100;
-    fill_h = bat_h - 2 * fill_gap;
-
-    /* 1px 线框外轮廓 */
-    LCD_DrawRectangle(x, y, x + bat_w - 1, y + bat_h - 1, border_color);
-
-    /* 内部背景 */
-    if(bat_w > 2 && bat_h > 2)
     {
-        LCD_FillByColor(x + 1, y + 1, x + bat_w - 1, y + bat_h - 1, bg_color);
+        battery_percent = 100;
     }
 
-    /* 电量填充（与百分比成比例） */
+    clear_h = (bat_h > text_size) ? bat_h : text_size;
+    LCD_FillByColor(x, y, 240, y + clear_h + 2 * scale, BLACK);
+
+    /* 圆角外壳：外框 + 内挖空 */
+    LCD_FillRoundRect(x, y, bat_w, bat_h, round_r, border_color);
+    if(bat_w > 2 * stroke && bat_h > 2 * stroke)
+    {
+        LCD_FillRoundRect(x + stroke, y + stroke,
+                          bat_w - 2 * stroke, bat_h - 2 * stroke,
+                          (round_r > stroke) ? (round_r - stroke) : 0,
+                          bg_color);
+    }
+
+    inner_w = bat_w - 2 * fill_gap;
+    inner_h = bat_h - 2 * fill_gap;
+    fill_w = inner_w * battery_percent / 100;
+
+    /* 从左向右实心填充，宽度与百分比一致 */
     if(battery_percent > 0 && fill_w > 0)
     {
-        LCD_FillByColor(x + fill_gap, y + fill_gap,
+        if(fill_w > inner_w)
-                        x + fill_gap + fill_w, y + fill_gap + fill_h,
+        {
-                        fill_color);
+            fill_w = inner_w;
+        }
+        LCD_FillRoundRect(x + fill_gap, y + fill_gap,
+                          fill_w, inner_h,
+                          1 * scale, fill_color);
     }
 
     /* 右侧正极小凸起 */
-    LCD_FillByColor(pole_x, pole_y, pole_x + pole_w, pole_y + pole_h, border_color);
+    pole_x = x + bat_w;
+    pole_y = y + (bat_h - pole_h) / 2;
+    LCD_FillRoundRect(pole_x, pole_y, pole_w, pole_h, 1 * scale, border_color);
 
     sprintf((char*)Info, "%d%%", battery_percent);
     text_x = pole_x + pole_w + 2 * scale;
-    LCD_ShowString(text_x, y, Info, WHITE, BLACK, 16, 0);
+    text_y = y + (bat_h - text_size) / 2;
+    LCD_ShowString(text_x, text_y, Info, WHITE, bg_color, text_size, 0);
 }
 
 /******************************************************************************