t maskCenterL = maskEdgeL;
                    let maskCenterR = maskEdgeR;
                    let maskCenterT = maskEdgeT;
                    let maskCenterB = maskEdgeB;
                    const centerCheckSize = 28;
                    if (maskCenterR - maskCenterL >= centerCheckSize) {
                        const delta = (maskCenterR - maskCenterL - centerCheckSize) / 2;
                        maskCenterL += delta;
                        maskCenterR -= delta;
                    }
               