ixColors(maskColors, grayMask);
                                const checkColors = backContext.getImageData(maskCenterL - spreadSize + item.delta + offsetL, maskCenterT - spreadSize + offsetT, maskCenterR - maskCenterL + spreadSize * 2, maskCenterB - maskCenterT + spreadSize * 2).data;
                                item.spreadDiff = colorDiff(mixedColors, checkColors);
                                item.spreadSize = spreadSize;
                            }
                            possiblePosArr.so