cterBounds(rangeStart, charBounds);

            console.log("charcterBoundsRangeStart:");
            console.log(editContext.characterBoundsRangeStart);
            console.log("charcterBounds:");
            console.log(editContext.characterBounds());
        }
    });

    function handleTextFormat(textFormat) {
        console.log(`textformatupdate: range(${textFormat.rangeStart}, ${textFormat.rangeEnd}),${textFormat.underlineColor}, ${textFormat.backgroundColor}, ${textFormat.textColor},${te