Extracted installation methods, created a new class for theme installers

scripts/install/local_theme_installer.py

@@ -0,0 +1,31 @@
+import os.path
+
+from scripts import config
+from scripts.install.theme_installer import ThemeInstaller
+from scripts.theme import Theme
+from scripts.utils import remove_files
+
+
+class LocalThemeInstaller(ThemeInstaller):
+    theme: Theme
+
+    def remove(self):
+        args = self.args
+        colors = self.colors.colors
+        if args.remove or args.reinstall:
+            remove_files(args, colors)
+            if not args.reinstall:
+                return
+
+    def _define_theme(self):
+        theme_folder = os.path.join(config.raw_theme_folder, config.gnome_folder)
+        self.theme = Theme("gnome-shell", self.colors, theme_folder,
+                              config.themes_folder, config.temp_folder,
+                              mode=self.args.mode, is_filled=self.args.filled)
+
+    def _install_theme(self, hue, theme_name, sat):
+        self.theme.prepare()
+        self.theme.install(hue, theme_name, sat)
+
+    def _apply_tweaks_to_theme(self):
+        self._apply_tweaks(self.theme)