Added Dark OS detection + Dark Theme

StartUI.py

@@ -1,4 +1,4 @@
-import sys, gpustat, os, json, subprocess, platform, psutil, urllib.request, re, requests
+import sys, gpustat, os, json, subprocess, platform, psutil, urllib.request, re, requests, darkdetect, qdarktheme
 from PyQt5.QtWidgets import QApplication, QToolBar, QMessageBox, QAction, QProgressBar, QMainWindow, QLabel, QVBoxLayout, QComboBox, QSlider, QCheckBox, QLineEdit, QFileDialog, QPushButton, QWidget, QListWidget, QListWidgetItem, QToolTip, QGridLayout, QRadioButton, QFrame, QDialog
 from PyQt5.QtCore import Qt
 
@@ -973,5 +973,7 @@ class MainWindow(QMainWindow):
 if __name__ == "__main__":
     app = QApplication(sys.argv)
     main_window = MainWindow()
+    if darkdetect.isDark():
+        app.setStyleSheet(qdarktheme.load_stylesheet())
     main_window.show()
     sys.exit(app.exec_())

requirements.txt

@@ -1,3 +1,5 @@
 PyQt5
 gpustat
-psutil
+psutil
+pyqtdarktheme
+darkdetect