运行上一段代码出现错误：AttributeError: 'Colors' object has no attribute 'bg_dark'

非常抱歉，我之前提供的代码中存在错误。在 ttkbootstrap 库中，没有名为 `bg_dark` 的属性。请使用以下代码来修复该问题：

import sys
import os
import subprocess
import tkinter as tk
from tkinter import filedialog
from ttkbootstrap import Style
from tkinter.font import Font

class LogcatWindow(tk.Tk):
    def __init__(self):
        super().__init__()

        self.logcat_process = None
        self.save_path = ""

        self.style = Style(theme='flatly')
        self.title_font = Font(family='Helvetica', size=16, weight='bold')

        self.title('Logcat Window')
        self.geometry('500x400')
        self.configure(bg=self.style.colors.gray_light)

        self.text_widget = tk.Text(self, bg=self.style.colors.white, fg=self.style.colors.black,
                                   font=self.title_font, wrap=tk.WORD)
        self.text_widget.pack(pady=10, padx=10, fill=tk.BOTH, expand=True)

        self.start_button = self.style.Button(
            self, text="Start", command=self.start_logcat, width=10, style='success.Outline.TButton')
        self.start_button.pack(side=tk.LEFT, padx=10)

        self.stop_button = self.style.Button(
            self, text="Stop", command=self.stop_logcat, width=10, style='danger.Outline.TButton')
        self.stop_button.pack(side=tk.LEFT, padx=10)

        self.save_button = self.style.Button(
            self, text="Save Path", command=self.select_save_path, width=10, style='secondary.Outline.TButton')
        self.save_button.pack(side=tk.LEFT, padx=10)

    def start_logcat(self):
        if self.logcat_process is None:
            self.logcat_process = subprocess.Popen(['adb', 'logcat'], stdout=subprocess.PIPE, stderr=subprocess.PIPE,
                                                   universal_newlines=True)
            self.read_logcat_output()

    def stop_logcat(self):
        if self.logcat_process is not None:
            self.logcat_process.terminate()
            self.logcat_process = None

    def select_save_path(self):
        self.save_path = filedialog.askdirectory()

    def read_logcat_output(self):
        if self.logcat_process is not None:
            output = self.logcat_process.stdout.readline()
            if output:
                self.text_widget.insert(tk.END, output)
                self.text_widget.see(tk.END)

                if self.save_path:
                    with open(os.path.join(self.save_path, "logcat.txt"), "a") as file:
                        file.write(output)

            self.after(1, self.read_logcat_output)

if __name__ == '__main__':
    app = LogcatWindow()
    app.mainloop()

我已经将背景颜色和文本颜色设置为了正确的值。现在，应该不会再出现 `AttributeError: 'Colors' object has no attribute 'bg_dark'` 错误了。

非常抱歉给您带来的困扰，并感谢您的理解。如果您还有其他问题，请随时提问。