字体大小修改，问题图删除，第一版logo测试。

chart/tools.py

@@ -357,13 +357,16 @@ class="layui-input" style="height: 25px; width:80px;margin-top: 6px">
 
     def color_js(self):
         code = ""
+        init_color = ""
         for i in self.colors_dict.keys():
             if self.colors_dict[i] == "rgb":
                 fl = "rgb"
+                init_color = "rgb(0,0,0)"
             else:
                 fl = "hex"
+                init_color = "#000000"
             code += """
-            %s = "#000000"
+            %s = "%s"
             layui.use('colorpicker', function()
 {
     var $ = layui.$
@@ -381,7 +384,7 @@ class="layui-input" style="height: 25px; width:80px;margin-top: 6px">
             
         });
         })
-            """ % (i + '_', i, random_color(), fl, i + "_")
+            """ % (i + '_', init_color, i, random_color(), fl, i + "_")
 
         return code