"ANOT_MIN_ANGLE",
"ANOT_MIN_SPACING",
"ANOT_FONT",
"ANOT_FONT_SIZE",
"ANOT_OFFSET",
"BASEMAP_AXES",
"BASEMAP_FRAME_RGB",
"BASEMAP_TYPE",
"COLOR_BACKGROUND",
"COLOR_FOREGROUND",
"COLOR_NAN",
"COLOR_IMAGE",
"COLOR_MODEL",
"D_FORMAT",
"DEGREE_FORMAT",
"DOTS_PR_INCH",
"ELLIPSOID",
"FRAME_PEN",
"FRAME_WIDTH",
"GLOBAL_X_SCALE",
"GLOBAL_Y_SCALE",
"GRID_CROSS_SIZE",
"GRID_PEN",
"GRIDFILE_SHORTHAND",
"HEADER_FONT",
"HEADER_FONT_SIZE",
"HSV_MIN_SATURATION",
"HSV_MAX_SATURATION",
"HSV_MIN_VALUE",
"HSV_MAX_VALUE",
"INTERPOLANT",
"IO_HEADER",
"N_HEADER_RECS",
"LABEL_FONT",
"LABEL_FONT_SIZE",
"LINE_STEP",
"MAP_SCALE_FACTOR",
"MAP_SCALE_HEIGHT",
"MEASURE_UNIT",
"N_COPIES",
"OBLIQUE_ANOTATION",
"PAGE_COLOR",
"PAGE_ORIENTATION",
"PAPER_MEDIA",
"PSIMAGE_FORMAT",
"TICK_LENGTH",
"TICK_PEN",
"UNIX_TIME",
"UNIX_TIME_POS",
"VECTOR_SHAPE",
"VERBOSE",
"WANT_EURO_FONT",
"X_AXIS_LENGTH",
"Y_AXIS_LENGTH",
"X_ORIGIN",
"Y_ORIGIN",
"XY_TOGGLE",
"Y_AXIS_TYPE"