You can set the ratio_grid_interval configuration option to a value from 0 to 1, so that the grid space is set to the value specified. The conic parameter handle automatically snaps according to this grid value in intervals when you drag this handle. The conic parameter controls the sharpness of the conic cross-sectional shape of the round feature.

If you do not specify a value for ratio_grid_interval, the grid space is automatically set to the default value of 0.05.