Make menuconfig colors configurable

Closes https://github.com/espressif/esp-idf/issues/4387

docs/en/get-started/index.rst

@@ -321,6 +321,11 @@ If the previous steps have been done correctly, the following menu appears:
 
     Project configuration - Home window
 
+.. note::
+
+    The colors of the menu could be different in your terminal. You can change the appearance with the option
+    ``--style``. Please run ``idf.py menuconfig --help`` for further information.
+
 To navigate and use ``menuconfig``, press the following keys:
 
 * Arrow keys for navigation

make/project_config.mk

@@ -99,10 +99,12 @@ define RunConfGen
 		$1
 endef
 
+export MENUCONFIG_STYLE ?= aquatic
+
 ifeq ($(OS),Windows_NT)
 MENUCONFIG_CMD := $(KCONFIG_TOOL_DIR)/mconf-idf
 else
-MENUCONFIG_CMD := MENUCONFIG_STYLE=aquatic $(PYTHON) $(IDF_PATH)/tools/kconfig_new/menuconfig.py
+MENUCONFIG_CMD := $(PYTHON) $(IDF_PATH)/tools/kconfig_new/menuconfig.py
 endif
 
 # macro for running menuconfig

tools/cmake/kconfig.cmake

@@ -255,7 +255,7 @@ function(__kconfig_generate_config sdkconfig sdkconfig_defaults)
 
         set(MENUCONFIG_CMD ${mconf})
     else()
-        set(MENUCONFIG_CMD "MENUCONFIG_STYLE=aquatic" ${python} ${idf_path}/tools/kconfig_new/menuconfig.py)
+        set(MENUCONFIG_CMD ${python} ${idf_path}/tools/kconfig_new/menuconfig.py)
     endif()
 
     # Generate the menuconfig target

tools/idf_py_actions/core_ext.py

@@ -30,6 +30,14 @@ def action_extensions(base_actions, project_path):
         ensure_build_directory(args, ctx.info_name)
         run_target(target_name, args)
 
+    def menuconfig(target_name, ctx, args, style):
+        """
+        Menuconfig target is build_target extended with the style argument for setting the value for the environment
+        variable.
+        """
+        os.environ['MENUCONFIG_STYLE'] = style
+        build_target(target_name, ctx, args)
+
     def fallback_target(target_name, ctx, args):
         """
         Execute targets that are not explicitly known to idf.py
@@ -236,9 +244,22 @@ def action_extensions(base_actions, project_path):
                 ],
             },
             "menuconfig": {
-                "callback": build_target,
+                "callback": menuconfig,
                 "help": 'Run "menuconfig" project configuration tool.',
-                "options": global_options,
+                "options": global_options + [
+                    {
+                        "names": ["--style", "--color-scheme", "style"],
+                        "help": (
+                            "Menuconfig style.\n"
+                            "Is it possible to customize the menuconfig style by either setting the MENUCONFIG_STYLE "
+                            "environment variable or through this option. The built-in styles include:\n\n"
+                            "- default - a yellowish theme,\n\n"
+                            "- monochrome -  a black and white theme, or\n"
+                            "- aquatic - a blue theme.\n\n"
+                            "The default value is \"aquatic\". It is possible to customize these themes further "
+                            "as it is described in the Color schemes section of the kconfiglib documentation."),
+                        "default": os.environ.get('MENUCONFIG_STYLE', 'aquatic'),
+                    }],
             },
             "confserver": {
                 "callback": build_target,