We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Change fast theme button color back to white
After upgrading to Panel 0.12.0 the fast theme button switched to the red color

![image](https://user-images.githubusercontent.com/42288570/128121534-ab72365c-9a3c-4db3-be02-9138fe2d0416.png)

I would propose switching it back to white because 1) It looks better 2) receives less attention 3) makes changing the style of the template easier.

With the white color it looks like

![image](https://user-images.githubusercontent.com/42288570/128121664-4bbc9029-da22-498f-b3ad-2a2adf2b66c2.png)

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `panel/template/fast/theme.py`
Content:
```
1 """
2 Functionality for styling according to Fast.design
3 """
4 import pathlib
5 import param
6 
7 from bokeh.themes import Theme as _BkTheme
8 
9 from ..theme import DarkTheme, DefaultTheme
10 
11 _ROOT = pathlib.Path(__file__).parent / "css"
12 
13 COLLAPSED_SVG_ICON = """
14 <svg style="stroke: var(--accent-fill-rest);" width="18" height="18" viewBox="0 0 18 18" fill="none" xmlns="http://www.w3.org/2000/svg" slot="collapsed-icon">
15   <path d="M15.2222 1H2.77778C1.79594 1 1 1.79594 1 2.77778V15.2222C1 16.2041 1.79594 17 2.77778 17H15.2222C16.2041 17 17 16.2041 17 15.2222V2.77778C17 1.79594 16.2041 1 15.2222 1Z" stroke-linecap="round" stroke-linejoin="round"></path>
16   <path d="M9 5.44446V12.5556" stroke-linecap="round" stroke-linejoin="round"></path>
17   <path d="M5.44446 9H12.5556" stroke-linecap="round" stroke-linejoin="round"></path>
18 </svg>
19 """ # noqa
20 
21 EXPANDED_SVG_ICON = """
22 <svg style="stroke: var(--accent-fill-rest);" width="18" height="18" viewBox="0 0 18 18" fill="none" xmlns="http://www.w3.org/2000/svg" slot="expanded-icon">
23   <path d="M15.2222 1H2.77778C1.79594 1 1 1.79594 1 2.77778V15.2222C1 16.2041 1.79594 17 2.77778 17H15.2222C16.2041 17 17 16.2041 17 15.2222V2.77778C17 1.79594 16.2041 1 15.2222 1Z" stroke-linecap="round" stroke-linejoin="round"></path>
24   <path d="M5.44446 9H12.5556" stroke-linecap="round" stroke-linejoin="round"></path>
25 </svg>
26 """ # noqa
27 
28 FONT_URL = "//fonts.googleapis.com/css?family=Open+Sans"
29 
30 class FastStyle(param.Parameterized):
31     """
32     The FastStyle class provides the different colors and icons used
33     to style the Fast Templates.
34     """
35 
36     background_color = param.String(default="#ffffff")
37     neutral_color = param.String(default="#000000")
38     accent_base_color = param.String(default="#A01346")
39     collapsed_icon = param.String(default=COLLAPSED_SVG_ICON)
40     expanded_icon = param.String(default=EXPANDED_SVG_ICON)
41     color = param.String(default="#00aa41")
42     neutral_fill_card_rest = param.String(default="#F7F7F7")
43     neutral_focus = param.String(default="#888888")
44     neutral_foreground_rest = param.String(default="#2B2B2B")
45 
46     header_background = param.String(default="#00aa41")
47     header_neutral_color = param.String(default="#ffffff")
48     header_accent_base_color = param.String(default="#A01346")
49     header_color = param.String(default="#ffffff")
50     font = param.String(default="Open Sans, sans-serif")
51     font_url = param.String(default=FONT_URL)
52     corner_radius = param.Integer(default=3)
53     shadow = param.Boolean(default=True)
54 
55     def create_bokeh_theme(self):
56         """Returns a custom bokeh theme based on the style parameters
57 
58         Returns:
59             Dict: A Bokeh Theme
60         """
61 
62         return {
63             "attrs": {
64                 "Figure": {
65                     "background_fill_color": self.background_color,
66                     "border_fill_color": self.neutral_fill_card_rest,
67                     "border_fill_alpha": 0,
68                     "outline_line_color": self.neutral_focus,
69                     "outline_line_alpha": 0.5,
70                     "outline_line_width": 1,
71                 },
72                 "Grid": {"grid_line_color": self.neutral_focus, "grid_line_alpha": 0.25},
73                 "Axis": {
74                     "major_tick_line_alpha": 0.5,
75                     "major_tick_line_color": self.neutral_foreground_rest,
76                     "minor_tick_line_alpha": 0.25,
77                     "minor_tick_line_color": self.neutral_foreground_rest,
78                     "axis_line_alpha": 0.1,
79                     "axis_line_color": self.neutral_foreground_rest,
80                     "major_label_text_color": self.neutral_foreground_rest,
81                     "major_label_text_font": self.font,
82                     # Should be added back when bokeh 2.3.3 is released and https://github.com/bokeh/bokeh/issues/11110 fixed
83                     # "major_label_text_font_size": "1.025em",
84                     "axis_label_standoff": 10,
85                     "axis_label_text_color": self.neutral_foreground_rest,
86                     "axis_label_text_font": self.font,
87                     "axis_label_text_font_size": "1.25em",
88                     "axis_label_text_font_style": "normal",
89                 },
90                 "Legend": {
91                     "spacing": 8,
92                     "glyph_width": 15,
93                     "label_standoff": 8,
94                     "label_text_color": self.neutral_foreground_rest,
95                     "label_text_font": self.font,
96                     "label_text_font_size": "1.025em",
97                     "border_line_alpha": 0.5,
98                     "border_line_color": self.neutral_focus,
99                     "background_fill_alpha": 0.25,
100                     "background_fill_color": self.neutral_fill_card_rest,
101                 },
102                 "ColorBar": {
103                     "title_text_color": self.neutral_foreground_rest,
104                     "title_text_font": self.font,
105                     "title_text_font_size": "1.025em",
106                     "title_text_font_style": "normal",
107                     "major_label_text_color": self.neutral_foreground_rest,
108                     "major_label_text_font": self.font,
109                     "major_label_text_font_size": "1.025em",
110                     # "background_fill_color": FAST_DARK_75,
111                     "major_tick_line_alpha": 0,
112                     "bar_line_alpha": 0,
113                 },
114                 "Title": {
115                     "text_color": self.neutral_foreground_rest,
116                     "text_font": self.font,
117                     "text_font_size": "1.15em",
118                 },
119             }
120         }
121 
122 
123 DEFAULT_STYLE = FastStyle()
124 DARK_STYLE = FastStyle(
125     accent_base_color="#E1477E",
126     background_color="#181818",
127     color="#ffffff",
128     header_background="#313131",
129     header_color="#ffffff",
130     neutral_fill_card_rest="#212121",
131     neutral_focus="#717171",
132     neutral_foreground_rest="#e5e5e5",
133     shadow = False,
134 )
135 
136 class FastDefaultTheme(DefaultTheme):
137 
138     base_css = param.Filename(default=_ROOT / 'fast_root_default.css')
139 
140     style = param.ClassSelector(default=DEFAULT_STYLE, class_=FastStyle)
141 
142     __abstract = True
143 
144     @property
145     def bokeh_theme(self):
146         return _BkTheme(json=self.style.create_bokeh_theme())
147 
148 
149 class FastDarkTheme(DarkTheme):
150 
151     base_css = param.Filename(default=_ROOT / 'fast_root_dark.css')
152 
153     style = param.ClassSelector(default=DARK_STYLE, class_=FastStyle)
154 
155     __abstract = True
156 
157     @property
158     def bokeh_theme(self):
159         return _BkTheme(json=self.style.create_bokeh_theme())
160
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/panel/template/fast/theme.py b/panel/template/fast/theme.py
--- a/panel/template/fast/theme.py
+++ b/panel/template/fast/theme.py
@@ -45,7 +45,7 @@
 
     header_background = param.String(default="#00aa41")
     header_neutral_color = param.String(default="#ffffff")
-    header_accent_base_color = param.String(default="#A01346")
+    header_accent_base_color = param.String(default="#ffffff")
     header_color = param.String(default="#ffffff")
     font = param.String(default="Open Sans, sans-serif")
     font_url = param.String(default=FONT_URL)

{"golden_diff": "diff --git a/panel/template/fast/theme.py b/panel/template/fast/theme.py\n--- a/panel/template/fast/theme.py\n+++ b/panel/template/fast/theme.py\n@@ -45,7 +45,7 @@\n \n     header_background = param.String(default=\"#00aa41\")\n     header_neutral_color = param.String(default=\"#ffffff\")\n-    header_accent_base_color = param.String(default=\"#A01346\")\n+    header_accent_base_color = param.String(default=\"#ffffff\")\n     header_color = param.String(default=\"#ffffff\")\n     font = param.String(default=\"Open Sans, sans-serif\")\n     font_url = param.String(default=FONT_URL)\n", "issue": "Change fast theme button color back to white\nAfter upgrading to Panel 0.12.0 the fast theme button switched to the red color\r\n\r\n![image](https://user-images.githubusercontent.com/42288570/128121534-ab72365c-9a3c-4db3-be02-9138fe2d0416.png)\r\n\r\nI would propose switching it back to white because 1) It looks better 2) receives less attention 3) makes changing the style of the template easier.\r\n\r\nWith the white color it looks like\r\n\r\n![image](https://user-images.githubusercontent.com/42288570/128121664-4bbc9029-da22-498f-b3ad-2a2adf2b66c2.png)\n", "before_files": [{"content": "\"\"\"\nFunctionality for styling according to Fast.design\n\"\"\"\nimport pathlib\nimport param\n\nfrom bokeh.themes import Theme as _BkTheme\n\nfrom ..theme import DarkTheme, DefaultTheme\n\n_ROOT = pathlib.Path(__file__).parent / \"css\"\n\nCOLLAPSED_SVG_ICON = \"\"\"\n<svg style=\"stroke: var(--accent-fill-rest);\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\" slot=\"collapsed-icon\">\n  <path d=\"M15.2222 1H2.77778C1.79594 1 1 1.79594 1 2.77778V15.2222C1 16.2041 1.79594 17 2.77778 17H15.2222C16.2041 17 17 16.2041 17 15.2222V2.77778C17 1.79594 16.2041 1 15.2222 1Z\" stroke-linecap=\"round\" stroke-linejoin=\"round\"></path>\n  <path d=\"M9 5.44446V12.5556\" stroke-linecap=\"round\" stroke-linejoin=\"round\"></path>\n  <path d=\"M5.44446 9H12.5556\" stroke-linecap=\"round\" stroke-linejoin=\"round\"></path>\n</svg>\n\"\"\" # noqa\n\nEXPANDED_SVG_ICON = \"\"\"\n<svg style=\"stroke: var(--accent-fill-rest);\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\" slot=\"expanded-icon\">\n  <path d=\"M15.2222 1H2.77778C1.79594 1 1 1.79594 1 2.77778V15.2222C1 16.2041 1.79594 17 2.77778 17H15.2222C16.2041 17 17 16.2041 17 15.2222V2.77778C17 1.79594 16.2041 1 15.2222 1Z\" stroke-linecap=\"round\" stroke-linejoin=\"round\"></path>\n  <path d=\"M5.44446 9H12.5556\" stroke-linecap=\"round\" stroke-linejoin=\"round\"></path>\n</svg>\n\"\"\" # noqa\n\nFONT_URL = \"//fonts.googleapis.com/css?family=Open+Sans\"\n\nclass FastStyle(param.Parameterized):\n    \"\"\"\n    The FastStyle class provides the different colors and icons used\n    to style the Fast Templates.\n    \"\"\"\n\n    background_color = param.String(default=\"#ffffff\")\n    neutral_color = param.String(default=\"#000000\")\n    accent_base_color = param.String(default=\"#A01346\")\n    collapsed_icon = param.String(default=COLLAPSED_SVG_ICON)\n    expanded_icon = param.String(default=EXPANDED_SVG_ICON)\n    color = param.String(default=\"#00aa41\")\n    neutral_fill_card_rest = param.String(default=\"#F7F7F7\")\n    neutral_focus = param.String(default=\"#888888\")\n    neutral_foreground_rest = param.String(default=\"#2B2B2B\")\n\n    header_background = param.String(default=\"#00aa41\")\n    header_neutral_color = param.String(default=\"#ffffff\")\n    header_accent_base_color = param.String(default=\"#A01346\")\n    header_color = param.String(default=\"#ffffff\")\n    font = param.String(default=\"Open Sans, sans-serif\")\n    font_url = param.String(default=FONT_URL)\n    corner_radius = param.Integer(default=3)\n    shadow = param.Boolean(default=True)\n\n    def create_bokeh_theme(self):\n        \"\"\"Returns a custom bokeh theme based on the style parameters\n\n        Returns:\n            Dict: A Bokeh Theme\n        \"\"\"\n\n        return {\n            \"attrs\": {\n                \"Figure\": {\n                    \"background_fill_color\": self.background_color,\n                    \"border_fill_color\": self.neutral_fill_card_rest,\n                    \"border_fill_alpha\": 0,\n                    \"outline_line_color\": self.neutral_focus,\n                    \"outline_line_alpha\": 0.5,\n                    \"outline_line_width\": 1,\n                },\n                \"Grid\": {\"grid_line_color\": self.neutral_focus, \"grid_line_alpha\": 0.25},\n                \"Axis\": {\n                    \"major_tick_line_alpha\": 0.5,\n                    \"major_tick_line_color\": self.neutral_foreground_rest,\n                    \"minor_tick_line_alpha\": 0.25,\n                    \"minor_tick_line_color\": self.neutral_foreground_rest,\n                    \"axis_line_alpha\": 0.1,\n                    \"axis_line_color\": self.neutral_foreground_rest,\n                    \"major_label_text_color\": self.neutral_foreground_rest,\n                    \"major_label_text_font\": self.font,\n                    # Should be added back when bokeh 2.3.3 is released and https://github.com/bokeh/bokeh/issues/11110 fixed\n                    # \"major_label_text_font_size\": \"1.025em\",\n                    \"axis_label_standoff\": 10,\n                    \"axis_label_text_color\": self.neutral_foreground_rest,\n                    \"axis_label_text_font\": self.font,\n                    \"axis_label_text_font_size\": \"1.25em\",\n                    \"axis_label_text_font_style\": \"normal\",\n                },\n                \"Legend\": {\n                    \"spacing\": 8,\n                    \"glyph_width\": 15,\n                    \"label_standoff\": 8,\n                    \"label_text_color\": self.neutral_foreground_rest,\n                    \"label_text_font\": self.font,\n                    \"label_text_font_size\": \"1.025em\",\n                    \"border_line_alpha\": 0.5,\n                    \"border_line_color\": self.neutral_focus,\n                    \"background_fill_alpha\": 0.25,\n                    \"background_fill_color\": self.neutral_fill_card_rest,\n                },\n                \"ColorBar\": {\n                    \"title_text_color\": self.neutral_foreground_rest,\n                    \"title_text_font\": self.font,\n                    \"title_text_font_size\": \"1.025em\",\n                    \"title_text_font_style\": \"normal\",\n                    \"major_label_text_color\": self.neutral_foreground_rest,\n                    \"major_label_text_font\": self.font,\n                    \"major_label_text_font_size\": \"1.025em\",\n                    # \"background_fill_color\": FAST_DARK_75,\n                    \"major_tick_line_alpha\": 0,\n                    \"bar_line_alpha\": 0,\n                },\n                \"Title\": {\n                    \"text_color\": self.neutral_foreground_rest,\n                    \"text_font\": self.font,\n                    \"text_font_size\": \"1.15em\",\n                },\n            }\n        }\n\n\nDEFAULT_STYLE = FastStyle()\nDARK_STYLE = FastStyle(\n    accent_base_color=\"#E1477E\",\n    background_color=\"#181818\",\n    color=\"#ffffff\",\n    header_background=\"#313131\",\n    header_color=\"#ffffff\",\n    neutral_fill_card_rest=\"#212121\",\n    neutral_focus=\"#717171\",\n    neutral_foreground_rest=\"#e5e5e5\",\n    shadow = False,\n)\n\nclass FastDefaultTheme(DefaultTheme):\n\n    base_css = param.Filename(default=_ROOT / 'fast_root_default.css')\n\n    style = param.ClassSelector(default=DEFAULT_STYLE, class_=FastStyle)\n\n    __abstract = True\n\n    @property\n    def bokeh_theme(self):\n        return _BkTheme(json=self.style.create_bokeh_theme())\n\n\nclass FastDarkTheme(DarkTheme):\n\n    base_css = param.Filename(default=_ROOT / 'fast_root_dark.css')\n\n    style = param.ClassSelector(default=DARK_STYLE, class_=FastStyle)\n\n    __abstract = True\n\n    @property\n    def bokeh_theme(self):\n        return _BkTheme(json=self.style.create_bokeh_theme())\n", "path": "panel/template/fast/theme.py"}], "after_files": [{"content": "\"\"\"\nFunctionality for styling according to Fast.design\n\"\"\"\nimport pathlib\nimport param\n\nfrom bokeh.themes import Theme as _BkTheme\n\nfrom ..theme import DarkTheme, DefaultTheme\n\n_ROOT = pathlib.Path(__file__).parent / \"css\"\n\nCOLLAPSED_SVG_ICON = \"\"\"\n<svg style=\"stroke: var(--accent-fill-rest);\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\" slot=\"collapsed-icon\">\n  <path d=\"M15.2222 1H2.77778C1.79594 1 1 1.79594 1 2.77778V15.2222C1 16.2041 1.79594 17 2.77778 17H15.2222C16.2041 17 17 16.2041 17 15.2222V2.77778C17 1.79594 16.2041 1 15.2222 1Z\" stroke-linecap=\"round\" stroke-linejoin=\"round\"></path>\n  <path d=\"M9 5.44446V12.5556\" stroke-linecap=\"round\" stroke-linejoin=\"round\"></path>\n  <path d=\"M5.44446 9H12.5556\" stroke-linecap=\"round\" stroke-linejoin=\"round\"></path>\n</svg>\n\"\"\" # noqa\n\nEXPANDED_SVG_ICON = \"\"\"\n<svg style=\"stroke: var(--accent-fill-rest);\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\" slot=\"expanded-icon\">\n  <path d=\"M15.2222 1H2.77778C1.79594 1 1 1.79594 1 2.77778V15.2222C1 16.2041 1.79594 17 2.77778 17H15.2222C16.2041 17 17 16.2041 17 15.2222V2.77778C17 1.79594 16.2041 1 15.2222 1Z\" stroke-linecap=\"round\" stroke-linejoin=\"round\"></path>\n  <path d=\"M5.44446 9H12.5556\" stroke-linecap=\"round\" stroke-linejoin=\"round\"></path>\n</svg>\n\"\"\" # noqa\n\nFONT_URL = \"//fonts.googleapis.com/css?family=Open+Sans\"\n\nclass FastStyle(param.Parameterized):\n    \"\"\"\n    The FastStyle class provides the different colors and icons used\n    to style the Fast Templates.\n    \"\"\"\n\n    background_color = param.String(default=\"#ffffff\")\n    neutral_color = param.String(default=\"#000000\")\n    accent_base_color = param.String(default=\"#A01346\")\n    collapsed_icon = param.String(default=COLLAPSED_SVG_ICON)\n    expanded_icon = param.String(default=EXPANDED_SVG_ICON)\n    color = param.String(default=\"#00aa41\")\n    neutral_fill_card_rest = param.String(default=\"#F7F7F7\")\n    neutral_focus = param.String(default=\"#888888\")\n    neutral_foreground_rest = param.String(default=\"#2B2B2B\")\n\n    header_background = param.String(default=\"#00aa41\")\n    header_neutral_color = param.String(default=\"#ffffff\")\n    header_accent_base_color = param.String(default=\"#ffffff\")\n    header_color = param.String(default=\"#ffffff\")\n    font = param.String(default=\"Open Sans, sans-serif\")\n    font_url = param.String(default=FONT_URL)\n    corner_radius = param.Integer(default=3)\n    shadow = param.Boolean(default=True)\n\n    def create_bokeh_theme(self):\n        \"\"\"Returns a custom bokeh theme based on the style parameters\n\n        Returns:\n            Dict: A Bokeh Theme\n        \"\"\"\n\n        return {\n            \"attrs\": {\n                \"Figure\": {\n                    \"background_fill_color\": self.background_color,\n                    \"border_fill_color\": self.neutral_fill_card_rest,\n                    \"border_fill_alpha\": 0,\n                    \"outline_line_color\": self.neutral_focus,\n                    \"outline_line_alpha\": 0.5,\n                    \"outline_line_width\": 1,\n                },\n                \"Grid\": {\"grid_line_color\": self.neutral_focus, \"grid_line_alpha\": 0.25},\n                \"Axis\": {\n                    \"major_tick_line_alpha\": 0.5,\n                    \"major_tick_line_color\": self.neutral_foreground_rest,\n                    \"minor_tick_line_alpha\": 0.25,\n                    \"minor_tick_line_color\": self.neutral_foreground_rest,\n                    \"axis_line_alpha\": 0.1,\n                    \"axis_line_color\": self.neutral_foreground_rest,\n                    \"major_label_text_color\": self.neutral_foreground_rest,\n                    \"major_label_text_font\": self.font,\n                    # Should be added back when bokeh 2.3.3 is released and https://github.com/bokeh/bokeh/issues/11110 fixed\n                    # \"major_label_text_font_size\": \"1.025em\",\n                    \"axis_label_standoff\": 10,\n                    \"axis_label_text_color\": self.neutral_foreground_rest,\n                    \"axis_label_text_font\": self.font,\n                    \"axis_label_text_font_size\": \"1.25em\",\n                    \"axis_label_text_font_style\": \"normal\",\n                },\n                \"Legend\": {\n                    \"spacing\": 8,\n                    \"glyph_width\": 15,\n                    \"label_standoff\": 8,\n                    \"label_text_color\": self.neutral_foreground_rest,\n                    \"label_text_font\": self.font,\n                    \"label_text_font_size\": \"1.025em\",\n                    \"border_line_alpha\": 0.5,\n                    \"border_line_color\": self.neutral_focus,\n                    \"background_fill_alpha\": 0.25,\n                    \"background_fill_color\": self.neutral_fill_card_rest,\n                },\n                \"ColorBar\": {\n                    \"title_text_color\": self.neutral_foreground_rest,\n                    \"title_text_font\": self.font,\n                    \"title_text_font_size\": \"1.025em\",\n                    \"title_text_font_style\": \"normal\",\n                    \"major_label_text_color\": self.neutral_foreground_rest,\n                    \"major_label_text_font\": self.font,\n                    \"major_label_text_font_size\": \"1.025em\",\n                    # \"background_fill_color\": FAST_DARK_75,\n                    \"major_tick_line_alpha\": 0,\n                    \"bar_line_alpha\": 0,\n                },\n                \"Title\": {\n                    \"text_color\": self.neutral_foreground_rest,\n                    \"text_font\": self.font,\n                    \"text_font_size\": \"1.15em\",\n                },\n            }\n        }\n\n\nDEFAULT_STYLE = FastStyle()\nDARK_STYLE = FastStyle(\n    accent_base_color=\"#E1477E\",\n    background_color=\"#181818\",\n    color=\"#ffffff\",\n    header_background=\"#313131\",\n    header_color=\"#ffffff\",\n    neutral_fill_card_rest=\"#212121\",\n    neutral_focus=\"#717171\",\n    neutral_foreground_rest=\"#e5e5e5\",\n    shadow = False,\n)\n\nclass FastDefaultTheme(DefaultTheme):\n\n    base_css = param.Filename(default=_ROOT / 'fast_root_default.css')\n\n    style = param.ClassSelector(default=DEFAULT_STYLE, class_=FastStyle)\n\n    __abstract = True\n\n    @property\n    def bokeh_theme(self):\n        return _BkTheme(json=self.style.create_bokeh_theme())\n\n\nclass FastDarkTheme(DarkTheme):\n\n    base_css = param.Filename(default=_ROOT / 'fast_root_dark.css')\n\n    style = param.ClassSelector(default=DARK_STYLE, class_=FastStyle)\n\n    __abstract = True\n\n    @property\n    def bokeh_theme(self):\n        return _BkTheme(json=self.style.create_bokeh_theme())\n", "path": "panel/template/fast/theme.py"}]}