diff --git a/README.md b/README.md
index 60e2986..eb9525b 100644
--- a/README.md
+++ b/README.md
@@ -195,9 +195,21 @@ Command: `mapcss`.
 
 `python roentgen.py mapcss` will create `out/roentgen_mapcss` directory with simple MapCSS 0.2 scheme adding icons from Röntgen icon set to nodes and areas: `.mapcss` file and directory with icons.
 
+To create MapCSS with only Röntgen icons run `python roentgen.py mapcss --no-ways`.
+
 | Option | Description |
 |---|---|
-| `--icons` | add icons for nodes and areas, default value: `True` |
-| `--ways` | add style for ways and relations, default value: `True` |
-| `--lifecycle` | add icons for lifecycle tags, default value: `True` |
+| `--icons` | add icons for nodes and areas, set by default |
+| `--ways` | add style for ways and relations, set by default |
+| `--lifecycle` | add icons for lifecycle tags, set by default |
+
+### Use Röntgen as JOSM map paint style ###
+
+  * Open [JOSM](https://josm.openstreetmap.de/).
+  * Go to <kbd>Preferences</kbd> → Third tab on the left → <kbd>Map Paint Styles</kbd>.
+  * Active styles: press <kbd>+</kbd>.
+  * URL / File: set path to `out/roentgen_mapcss/roentgen.mapcss`.
+  * <kbd>Ok</kbd> → <kbd>OK</kbd>.
+
+To enable / disable Röntgen map paint style go to <kbd>View</kbd> → <kbd>Map Paint Styles</kbd> → <kbd>Röntgen</kbd>.
 
diff --git a/doc/readme.moi b/doc/readme.moi
index 52bfd03..96b6480 100644
--- a/doc/readme.moi
+++ b/doc/readme.moi
@@ -211,4 +211,17 @@ Command\: \m {mapcss}.
 
 \m {python roentgen.py mapcss} will create \m {out/roentgen_mapcss} directory with simple MapCSS 0.2 scheme adding icons from Röntgen icon set to nodes and areas\: \m {.mapcss} file and directory with icons.
 
+To create MapCSS with only Röntgen icons run \m {python roentgen.py mapcss --no-ways}.
+
 \options {mapcss}
+
+\3 {Use Röntgen as JOSM map paint style}
+
+\list
+    {Open \ref {https://josm.openstreetmap.de/} {JOSM}.}
+    {Go to \kbd {Preferences} → Third tab on the left → \kbd {Map Paint Styles}.}
+    {Active styles: press \kbd {+}.}
+    {URL / File: set path to \m {out/roentgen_mapcss/roentgen.mapcss}.}
+    {\kbd {Ok} → \kbd {OK}.}
+
+To enable / disable Röntgen map paint style go to \kbd {View} → \kbd {Map Paint Styles} → \kbd {Röntgen}.
diff --git a/roentgen/mapcss.py b/roentgen/mapcss.py
index a472635..a77b2bf 100644
--- a/roentgen/mapcss.py
+++ b/roentgen/mapcss.py
@@ -7,6 +7,7 @@ from typing import List, Optional, Dict
 import logging
 from colour import Color
 
+from roentgen import __project__, __url__
 from roentgen.workspace import workspace
 from roentgen.grid import IconCollection
 from roentgen.icon import ShapeExtractor
@@ -50,18 +51,18 @@ relation[building] {
     opacity: 1;
 }"""
 
-HEADER: str = """
+HEADER: str = f"""
 /*
 Map paint style that adds icons from Röntgen icon set
 */
 
-meta {
-    title: "Röntgen icons";
-    description: "Icons from Röntgen icon set for JOSM";
-    author: "Sergey Vartanov";
+meta {{
+    title: "{__project__}";
+    description: "Röntgen map paint style for JOSM";
+    author: "{__author__}";
     version: "0.1";
-    link: "https://github.com/enzet/Roentgen";
-}"""
+    link: "{__url__}";
+}}"""
 
 
 class MapCSSWriter:
@@ -77,7 +78,6 @@ class MapCSSWriter:
         self.add_ways: bool = add_ways
         self.add_icons_for_lifecycle: bool = add_icons_for_lifecycle
         self.icon_directory_name: str = icon_directory_name
-        print(self.add_icons, self.add_ways, self.add_icons_for_lifecycle)
 
         self.point_matchers: List[Matcher] = scheme.node_matchers
         self.line_matchers: List[Matcher] = scheme.way_matchers
diff --git a/roentgen/moire_manager.py b/roentgen/moire_manager.py
index 59cf2f3..3b2a19f 100644
--- a/roentgen/moire_manager.py
+++ b/roentgen/moire_manager.py
@@ -64,10 +64,19 @@ class ArgumentParser(argparse.ArgumentParser):
                     and option["default"]
                     and option["default"] != "==SUPPRESS=="
                 ):
-                    default_value: Code = Tag("m", [str(option["default"])])
-                    if "type" in option and option["type"] in [int, float]:
-                        default_value = str(option["default"])
-                    help_value += [", default value: ", default_value]
+                    if (
+                        "action" in option
+                        and option["action"] == argparse.BooleanOptionalAction
+                    ):
+                        if option["default"] is True:
+                            help_value += [", set by default"]
+                        elif option["default"] is False:
+                            help_value += [", not set by default"]
+                    else:
+                        default_value: Code = Tag("m", [str(option["default"])])
+                        if "type" in option and option["type"] in [int, float]:
+                            default_value = str(option["default"])
+                        help_value += [", default value: ", default_value]
                 row.append(help_value)
             else:
                 row.append([])
@@ -158,6 +167,10 @@ class RoentgenMoire(Default, ABC):
             )
         return self.parse(parser.get_moire_help())
 
+    def kbd(self, args: Arguments) -> str:
+        """Keyboard key."""
+        return self.m(args)
+
 
 class RoentgenHTML(RoentgenMoire, DefaultHTML):
     """
@@ -229,3 +242,7 @@ class RoentgenMarkdown(RoentgenMoire, DefaultMarkdown):
     def icon(self, args: Arguments) -> str:
         """Image with Röntgen icon."""
         return f"[{self.clear(args[0])}]"
+
+    def kbd(self, args: Arguments) -> str:
+        """Keyboard key."""
+        return f"<kbd>{self.clear(args[0])}</kbd>"