private void pbcl_editorBackColor_Click(object sender, EventArgs e)
    {
        ColorDialog editorBackColor = new ColorDialog();

        if (editorBackColor.ShowDialog() == DialogResult.OK)
        {
            Variables.Editor_BackColor = "#" + editorBackColor.Color.ToArgb().ToString("X");
            Color colour = ColorTranslator.FromHtml(Variables.Editor_ForeColor);
            _main.ChangeBackColor(colour);
        }
    }