支持更多UI皮肤外观，加入暗色亮色切换键

main.py

@@ -123,6 +123,15 @@ def main():
                     max_length_sl = gr.Slider(minimum=256, maximum=8192, value=4096, step=1, interactive=True, label="Local LLM MaxLength",)
                     checkboxes = gr.CheckboxGroup(["基础功能区", "函数插件区", "底部输入区", "输入清除键", "插件参数区"], value=["基础功能区", "函数插件区"], label="显示/隐藏功能区")
                     md_dropdown = gr.Dropdown(AVAIL_LLM_MODELS, value=LLM_MODEL, label="更换LLM模型/请求源").style(container=False)
+                    dark_mode_btn = gr.Button("Toggle Dark Mode ☀", variant="secondary").style(size="sm")
+                    dark_mode_btn.click(None, None, None, _js="""() => {
+                            if (document.querySelectorAll('.dark').length) {
+                                document.querySelectorAll('.dark').forEach(el => el.classList.remove('dark'));
+                            } else {
+                                document.querySelector('body').classList.add('dark');
+                            }
+                        }""",
+                    )
                     gr.Markdown(description)
                 with gr.Accordion("备选输入区", open=True, visible=False, elem_id="input-panel2") as area_input_secondary:
                     with gr.Row():