thin_line_size: 0.5
thin_line_color: '{ 0.9 0.9 0.9 }'

heavy_line_size: 0.5
heavy_line_color: '{ 0.8 0.8 0.8 }'

border_line_size: 0.5
border_line_color: '{ 0.8 0.8 0.8 }'

background_color: '{ 1.0 1.0 1.0 }'