question: returns the current setting of the gray/alpha expansion . concode_field_sep boolean suppressAlpha concode_elem_sep boolean expandPalette concode_elem_sep boolean performGammaCorrection concode_elem_sep PNGEncodeParam encodeParam concode_elem_sep boolean expandGrayAlpha concode_elem_sep boolean generateEncodeParam concode_elem_sep boolean output8BitGray concode_elem_sep float userExponent concode_elem_sep float displayExponent concode_field_sep void setDisplayExponent concode_elem_sep void setPerformGammaCorrection concode_elem_sep void setEncodeParam concode_elem_sep void setExpandGrayAlpha concode_elem_sep float getUserExponent concode_elem_sep float getDisplayExponent concode_elem_sep boolean getSuppressAlpha concode_elem_sep boolean getPerformGammaCorrection concode_elem_sep void setOutput8BitGray concode_elem_sep void setSuppressAlpha concode_elem_sep void setGenerateEncodeParam concode_elem_sep PNGEncodeParam getEncodeParam concode_elem_sep void setExpandPalette concode_elem_sep void setUserExponent concode_elem_sep boolean getExpandPalette concode_elem_sep boolean getOutput8BitGray concode_elem_sep boolean getGenerateEncodeParam
target: boolean function ( ) { return expandGrayAlpha ; }