The Параметры PNG / PNG settings dialog box appears when you press the PNG параметры... / settings... button on the Сохранить Изображение Как / Save Image As dialog box.  It lets you control attributes of the PNG image file.

• See also “Import image file formats” and “Export image file formats” in this chapter for tables comparing the different image formats.

Размер в пикселах / Pixel size
Allows you to choose whether to save the file with 24-bit pixels (8 bits per color channel) or 48-bit pixels (16 bits per color channel).

            This option is available only if the image uses 45-bit pixels.  See Использовать 45-битные пикселы / Use 45-bit pixels and Использовать инструмент цвета / Enable color tool on the Свойства Проекта / Project properties dialog box to learn about 45-bit pixels.

Коррекция цвета / Color correction
Select this checkbox to save images with uncorrected colors.  Normally images are saved with the colors shown on the screen as affected by the Инструмент Цвета / Color tool settings.  Selecting this checkbox allows saving the image file without applying color correction.

            This option is available only if the image uses 45-bit pixels and the Save 48-bit pixels option is selected.  See Использовать 45-битные пикселы / Use 45-bit pixels and Использовать инструмент цвета / Enable color tool on the Project properties dialog box to learn about 45-bit pixels.