gimpcolor @drawable_ID: @brightness: @contrast: @Returns: @drawable_ID: @channel: @low_input: @high_input: @gamma: @low_output: @high_output: @Returns: @drawable_ID: @Returns: @drawable_ID: @Returns: @drawable_ID: @levels: @Returns: @drawable_ID: @Returns: @drawable_ID: @desaturate_mode: @Returns: @drawable_ID: @mask_only: @Returns: @drawable_ID: @Returns: @drawable_ID: @channel: @num_points: @control_pts: @Returns: @drawable_ID: @channel: @num_bytes: @curve: @Returns: @drawable_ID: @transfer_mode: @preserve_lum: @cyan_red: @magenta_green: @yellow_blue: @Returns: @drawable_ID: @hue: @saturation: @lightness: @Returns: @drawable_ID: @channel: @start_range: @end_range: @mean: @std_dev: @median: @pixels: @count: @percentile: @Returns: @drawable_ID: @hue_range: @hue_offset: @lightness: @saturation: @Returns: @drawable_ID: @low_threshold: @high_threshold: @Returns: