// Function to convert hex string with "0x" prefix into 6-digit color code format
// (called from setColorByRgb)
string formatColorCode(string code){

    // Get original string length
    int length = countText(code);

    // Remove the "0x" prefix
    code = cropText(code, 2, length);
    length -= 2;

    // Calculate how many leading zeros are needed
    int zeros = 6 - length;

    // Pad the beginning with zeros to make it 6 digits
    for(int i=0; i<zeros; i++){
        code = "0" + code;
    }

    return code;
}