diff --git a/qdarkstyle/utils/scss.py b/qdarkstyle/utils/scss.py
index 70f98f1..e0a1254 100644
--- a/qdarkstyle/utils/scss.py
+++ b/qdarkstyle/utils/scss.py
@@ -125,56 +125,86 @@ def _is_identifier(name):
     return check
 
 
-    if palette is None:
-        print("Please pass a palette class in order to create its "
-              "qrc file")
-        sys.exit(1)
+def create_qss(palette, base_path=''):
+    """Create variables files and run qtsass compilation.
+
+    This function will use the structure that must contain::
+
+        base_path
+            [palette.ID]
+                main.scss
+            qss
+                _style.scss
+
+    The structure after the execution will contain::
+
+        base_path
+            [palette.ID]
+                _variables.scss
+                [palette.ID]style.qss
+                main.scss
+            qss
+                _style.scss
+
+    Args:
+        palette (Palette): Palette class.
+        base_path (str): Base path for the palette directory, required for
+            custom palettes. Defaults to '' that uses `[PACKAGE_PATH]`.
+
+    Returns:
+        str: Stylesheet in string format.
+    """
 
     if palette.ID is None:
         print("A QDarkStyle palette requires an ID!")
         sys.exit(1)
 
     palette_path = os.path.join(PACKAGE_PATH, palette.ID)
+
+    if base_path:
+        palette_path = os.path.join(base_path, palette.ID)
+
+    _logger.info(f"Creating QSS for palette: '{palette.ID} ...")
+    _logger.info(f"Palette path: {palette_path}")
+
     variables_scss_filepath = os.path.join(palette_path, VARIABLES_SCSS_FILE)
     main_scss_filepath = os.path.join(palette_path, MAIN_SCSS_FILE)
-    qss_filepath = os.path.join(palette_path, palette.ID + QSS_FILE)
+    qss_filepath = os.path.join(palette_path, palette.ID + QSS_FILE_SUFFIX)
 
     _create_scss_variables(variables_scss_filepath, palette)
+
     stylesheet = _create_qss(main_scss_filepath, qss_filepath)
 
     return stylesheet
 
 
 def create_custom_qss(
-    name,
+    id,
     path,
-    color_background_light,
-    color_background_normal,
-    color_background_dark,
-    color_foreground_light,
-    color_foreground_normal,
-    color_foreground_dark,
-    color_selection_light,
-    color_selection_normal,
-    color_selection_dark,
-    border_radius,
+    color_backgroung=[],  # 6 elements
+    color_text=[],  # 4 elements
+    color_accent=[],  # 4 elemetns
+    border=[],  # 3 elements
+    border_selection=[],  # 3 elements
+    opacity_tooltip=None,
+    size_border_radius=None,
+    w_status_bar_background_color=None,
+    path_resources=None
 ):
     """
     Create a custom palette based on the parameters defined.
 
-    The `name` must be a valid Python identifier and will be stored
+    The `id` must be a valid Python identifier and will be stored
     as a lowercased folder (even if the identifier had uppercase letters).
 
-    This function returns the custom stylesheet pointing to resources stored at
-    .../path/name/.
+    This function returns the custom stylesheet pointing to resources stored
+    at path_resources/[id].
     """
-    # TODO: update this function for the new Palette class
-    raise NotImplementedError("Update this function for the new Palette class")
 
     stylesheet = ''
 
-    # Check if name is valid
-    if is_identifier(name):
+    # Check if name/id is valid
+    if _is_identifier(id):
         name = name if name[0].isupper() else name.capitalize()
     else:
         raise Exception('The custom palette name must be a valid Python '
@@ -200,6 +230,10 @@ def create_custom_qss(
     shutil.copytree(QSS_PATH, theme_qss_path)
 
     # Create custom palette
+    # ATTENTION: here we need to iterate over
+    # args of this function to fill the values
+    # of the Palette class member with correct values
+    # they still using the old values below
     custom_palette = type(name, (Palette, ), {})
     custom_palette.COLOR_BACKGROUND_LIGHT = color_background_light
     custom_palette.COLOR_BACKGROUND_NORMAL = color_background_normal
@@ -220,7 +254,8 @@ def create_custom_qss(
     # Compile SCSS
     variables_scss_filepath = os.path.join(theme_qss_path, VARIABLES_SCSS_FILE)
     theme_main_scss_filepath = os.path.join(theme_qss_path, MAIN_SCSS_FILE)
-    theme_qss_filepath = os.path.join(theme_root_path, palette.ID + QSS_FILE)
+    theme_qss_filepath = os.path.join(theme_root_path, palette.ID + QSS_FILE_SUFFIX)
+
     stylesheet = create_qss(
         qss_filepath=theme_qss_filepath,
         main_scss_filepath=theme_main_scss_filepath,