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?
if(fs::exists(dataDir))
        {
            if(fs::is_directory(dataDir))
            {
                QString separator = "<code>" + QDir::toNativeSeparators("/") + tr("name") + "</code>";
                replyStatus = ST_OK;
                replyMessage = tr("Directory already exists. Add %1 if you intend to create a new directory here.").arg(separator);
            } else {
                replyStatus = ST_ERROR;
                replyMessage = tr("Path already exists, and is not a directory.");
            }
        }
    } catch (const fs::filesystem_error&)
    {
        
        replyStatus = ST_ERROR;
        replyMessage = tr("Cannot create data directory here.");
    }
    Q_EMIT reply(replyStatus, replyMessage, freeBytesAvailable);
}
Intro::Intro(QWidget *parent, uint64_t blockchain_size, uint64_t chain_state_size) :
    QDialog(parent),
    ui(new Ui::Intro),
    thread(0),
    signalled(false),
    m_blockchain_size(blockchain_size),
    m_chain_state_size(chain_state_size)
{
    ui->setupUi(this);
    ui->welcomeLabel->setText(ui->welcomeLabel->text().arg(tr(PACKAGE_NAME)));