### - c -

- CATEGORY_DO_NOT_USE : layer.h
- CENTIMETERS_PER_METER : distance.cpp
- CHAR_RESOLUTION : lyr_freetype.cpp
- CHECK_TYPE_AND_SET_VALUE : valuenode.h
- COLOR_EPSILON : color.cpp
- COLOR_VALUE_TYPE_FORMAT : savecanvas.cpp
- colorspace_gamma : color.h
- COORD_SYS_RADIAL_TAN_INTERP : valuenode_bline.cpp
- CURR_POINT : valuenode_bline.cpp
- CURRENT_CANVAS_VERSION : canvas.h
- CUSP_TANGENT_ADJUST : plant.cpp , outline.cpp
- CUSP_THRESHOLD : plant.cpp , outline.cpp