There is a plenty diversity in information units through the code, command-line options, GUI and logs. Here are some examples:

`-dbcache`
**megabytes** in CL and GUI _vs_ **MiB** in logs and code (constants in [txdb.h](https://github.com/bitcoin/bitcoin/blob/master/src/txdb.h))

`-prune`
**MiB** in CL _vs_ **GB** in GUI. Also, setting prune = 1 GB in GUI gives _incorrect_ prune target = 1000 MiB.

Which prefix type -- binary (a power of 2) or SI (a power of 10) -- is preferable in the Bitcoin Core project?
{
    static const ProxySetting default_val = {false, DEFAULT_GUI_PROXY_HOST, QString("%1").arg(DEFAULT_GUI_PROXY_PORT)};
    
    if (!settings.contains(name)) {
        return default_val;
    }
    
    QStringList ip_port = settings.value(name).toString().split(":", QString::SkipEmptyParts);
    if (ip_port.size() == 2) {
        return {true, ip_port.at(0), ip_port.at(1)};
    } else { 
        return default_val;
    }
}
static void SetProxySetting(QSettings &settings, const QString &name, const ProxySetting &ip_port)
{
    settings.setValue(name, ip_port.ip + ":" + ip_port.port);
}
static const QString GetDefaultProxyAddress()
{
    return QString("%1:%2").arg(DEFAULT_GUI_PROXY_HOST).arg(DEFAULT_GUI_PROXY_PORT);
}
QVariant OptionsModel::data(const QModelIndex & index, int role) const