allow allowed ban banned not not allowed prohibit prohibited ride skate skateboard skateboarding beware black board drive move pictogram prohibition red round sign suppression symbol warning white action-sport background boys bright colorful coloring colors colourful colouring colours fence fenced flora flowers foliage footpath gardens green greenery movement moving path pavement paving plants rain raining recreation recreational risks risky rolling rolling-along shrubbery shrubs skateboarders skateboards transportation wet winter wintry youth Freeskate ice sport windsurf