How to use the qutebrowser.config.value.SettingValue function in qutebrowser

('zoom-levels',
             SettingValue(typ.List(typ.Perc(minval=0)),
                          '25%,33%,50%,67%,75%,90%,100%,110%,125%,150%,175%,'
                          '200%,250%,300%,400%,500%'),
             "The available zoom levels, separated by commas."),

            ('default-zoom',
             SettingValue(typ.Perc(), '100%'),
             "The default zoom level."),

            ('downloads-position',
             SettingValue(typ.VerticalPosition(), 'top'),
             "Where to show the downloaded files."),

            ('status-position',
             SettingValue(typ.VerticalPosition(), 'bottom'),
             "The position of the status bar."),

            ('message-timeout',
             SettingValue(typ.Int(minval=0), '2000'),
             "Time (in ms) to show messages in the statusbar for.\n"
             "Set to 0 to never clear messages."),

            ('message-unfocused',
             SettingValue(typ.Bool(), 'false'),
             "Whether to show messages in unfocused windows."),

            ('confirm-quit',
             SettingValue(typ.ConfirmQuit(), 'never'),
             "Whether to confirm quitting the application."),

            ('zoom-text-only',

('statusbar.fg.command.private',
             SettingValue(typ.QssColor(), '${statusbar.fg.private}'),
             "Foreground color of the statusbar in private browsing + command "
             "mode."),

            ('statusbar.bg.command.private',
             SettingValue(typ.QssColor(), '${statusbar.bg.private}'),
             "Background color of the statusbar in private browsing + command "
             "mode."),

            ('statusbar.fg.caret',
             SettingValue(typ.QssColor(), '${statusbar.fg}'),
             "Foreground color of the statusbar in caret mode."),

            ('statusbar.bg.caret',
             SettingValue(typ.QssColor(), 'purple'),
             "Background color of the statusbar in caret mode."),

            ('statusbar.fg.caret-selection',
             SettingValue(typ.QssColor(), '${statusbar.fg}'),
             "Foreground color of the statusbar in caret mode with a "
             "selection"),

            ('statusbar.bg.caret-selection',
             SettingValue(typ.QssColor(), '#a12dff'),
             "Background color of the statusbar in caret mode with a "
             "selection"),

            ('statusbar.progress.bg',
             SettingValue(typ.QssColor(), 'white'),
             "Background color of the progress bar."),

"Text color of the completion widget."),

            ('completion.bg',
             SettingValue(typ.QssColor(), '#333333'),
             "Background color of the completion widget."),

            ('completion.alternate-bg',
             SettingValue(typ.QssColor(), '#444444'),
             "Alternating background color of the completion widget."),

            ('completion.category.fg',
             SettingValue(typ.QtColor(), 'white'),
             "Foreground color of completion widget category headers."),

            ('completion.category.bg',
             SettingValue(typ.QssColor(), 'qlineargradient(x1:0, y1:0, x2:0, '
                          'y2:1, stop:0 #888888, stop:1 #505050)'),
             "Background color of the completion widget category headers."),

            ('completion.category.border.top',
             SettingValue(typ.QssColor(), 'black'),
             "Top border color of the completion widget category headers."),

            ('completion.category.border.bottom',
             SettingValue(typ.QssColor(), '${completion.category.border.top}'),
             "Bottom border color of the completion widget category headers."),

            ('completion.item.selected.fg',
             SettingValue(typ.QtColor(), 'black'),
             "Foreground color of the selected completion item."),

            ('completion.item.selected.bg',

"Foreground color a warning message."),

            ('messages.bg.warning',
             SettingValue(typ.QssColor(), 'darkorange'),
             "Background color of a warning message."),

            ('messages.border.warning',
             SettingValue(typ.QssColor(), '#d47300'),
             "Border color of an error message."),

            ('messages.fg.info',
             SettingValue(typ.QssColor(), 'white'),
             "Foreground color an info message."),

            ('messages.bg.info',
             SettingValue(typ.QssColor(), 'black'),
             "Background color of an info message."),

            ('messages.border.info',
             SettingValue(typ.QssColor(), '#333333'),
             "Border color of an info message."),

            ('prompts.fg',
             SettingValue(typ.QssColor(), 'white'),
             "Foreground color for prompts."),

            ('prompts.bg',
             SettingValue(typ.QssColor(), 'darkblue'),
             "Background color for prompts."),

            ('prompts.selected.bg',
             SettingValue(typ.QssColor(), '#308cc6'),

"existing window and activate the "
                      "window."),
                     ('tab-silent', "Open a new tab in the existing "
                      "window without activating "
                      "the window."),
                     ('tab-bg-silent', "Open a new background tab "
                      "in the existing window "
                      "without activating the "
                      "window."),
                     ('window', "Open in a new window.")
                 )), 'tab'),
             "How to open links in an existing instance if a new one is "
             "launched."),

            ('new-instance-open-target.window',
             SettingValue(typ.String(
                 valid_values=typ.ValidValues(
                     ('first-opened', "Open new tabs in the first (oldest) "
                                      "opened window."),
                     ('last-opened', "Open new tabs in the last (newest) "
                                     "opened window."),
                     ('last-focused', "Open new tabs in the most recently "
                                      "focused window."),
                     ('last-visible', "Open new tabs in the most recently "
                                      "visible window.")
                 )), 'last-focused'),
             "Which window to choose when opening links as new tabs."),

            ('log-javascript-console',
             SettingValue(typ.String(
                 valid_values=typ.ValidValues(
                     ('none', "Don't log messages."),

"Foreground color of the statusbar in insert mode."),

            ('statusbar.bg.insert',
             SettingValue(typ.QssColor(), 'darkgreen'),
             "Background color of the statusbar in insert mode."),

            ('statusbar.fg.command',
             SettingValue(typ.QssColor(), '${statusbar.fg}'),
             "Foreground color of the statusbar in command mode."),

            ('statusbar.bg.command',
             SettingValue(typ.QssColor(), '${statusbar.bg}'),
             "Background color of the statusbar in command mode."),

            ('statusbar.fg.command.private',
             SettingValue(typ.QssColor(), '${statusbar.fg.private}'),
             "Foreground color of the statusbar in private browsing + command "
             "mode."),

            ('statusbar.bg.command.private',
             SettingValue(typ.QssColor(), '${statusbar.bg.private}'),
             "Background color of the statusbar in private browsing + command "
             "mode."),

            ('statusbar.fg.caret',
             SettingValue(typ.QssColor(), '${statusbar.fg}'),
             "Foreground color of the statusbar in caret mode."),

            ('statusbar.bg.caret',
             SettingValue(typ.QssColor(), 'purple'),
             "Background color of the statusbar in caret mode."),

"The same placeholders like for title-format are defined."),

            ('title-alignment',
             SettingValue(typ.TextAlignment(), 'left'),
             "Alignment of the text inside of tabs"),

            ('mousewheel-tab-switching',
             SettingValue(typ.Bool(), 'true'),
             "Switch between tabs using the mouse wheel."),

            ('padding',
             SettingValue(typ.Padding(), '0,0,5,5'),
             "Padding for tabs (top, bottom, left, right)."),

            ('indicator-padding',
             SettingValue(typ.Padding(), '2,2,0,4'),
             "Padding for indicators (top, bottom, left, right)."),

            readonly=readonly
        )),

        ('storage', sect.KeyValue(
            ('download-directory',
             SettingValue(typ.Directory(none_ok=True), ''),
             "The directory to save downloads to. An empty value selects a "
             "sensible os-specific default. Will expand environment "
             "variables."),

            ('prompt-download-directory',
             SettingValue(typ.Bool(), 'true'),
             "Whether to prompt the user for the download location.\n"
             "If set to false, 'download-directory' will be used."),

'path,query'),
             "The URL segments where `:navigate increment/decrement` will "
             "search for a number."),

            readonly=readonly
        )),

        ('ui', sect.KeyValue(
            ('history-session-interval',
             SettingValue(typ.Int(), '30'),
             "The maximum time in minutes between two history items for them "
             "to be considered being from the same session. Use -1 to "
             "disable separation."),

            ('zoom-levels',
             SettingValue(typ.List(typ.Perc(minval=0)),
                          '25%,33%,50%,67%,75%,90%,100%,110%,125%,150%,175%,'
                          '200%,250%,300%,400%,500%'),
             "The available zoom levels, separated by commas."),

            ('default-zoom',
             SettingValue(typ.Perc(), '100%'),
             "The default zoom level."),

            ('downloads-position',
             SettingValue(typ.VerticalPosition(), 'top'),
             "Where to show the downloaded files."),

            ('status-position',
             SettingValue(typ.VerticalPosition(), 'bottom'),
             "The position of the status bar."),

SettingValue(typ.FontFamily(none_ok=True), ''),
             "Font family for fantasy fonts."),

            # Defaults for web-size-* from WebEngineSettings::initDefaults in
            # qtwebengine/src/core/web_engine_settings.cpp and
            # QWebSettings::QWebSettings() in
            # qtwebkit/Source/WebKit/qt/Api/qwebsettings.cpp

            ('web-size-minimum',
             SettingValue(typ.Int(minval=0, maxval=MAXVALS['int']), '0'),
             "The hard minimum font size."),

            # This is 0 as default on QtWebKit, and 6 on QtWebEngine - so let's
            # just go for 6 here.
            ('web-size-minimum-logical',
             SettingValue(typ.Int(minval=0, maxval=MAXVALS['int']), '6'),
             "The minimum logical font size that is applied when zooming "
             "out."),

            ('web-size-default',
             SettingValue(typ.Int(minval=1, maxval=MAXVALS['int']), '16'),
             "The default font size for regular text."),

            ('web-size-default-fixed',
             SettingValue(typ.Int(minval=1, maxval=MAXVALS['int']), '13'),
             "The default font size for fixed-pitch text."),

            ('keyhint',
             SettingValue(typ.Font(), DEFAULT_FONT_SIZE + ' ${_monospace}'),
             "Font used in the keyhint widget."),

            ('messages.error',

('statusbar.url.fg.success.https',
             SettingValue(typ.QssColor(), 'lime'),
             "Foreground color of the URL in the statusbar on successful "
             "load (https)."),

            ('statusbar.url.fg.error',
             SettingValue(typ.QssColor(), 'orange'),
             "Foreground color of the URL in the statusbar on error."),

            ('statusbar.url.fg.warn',
             SettingValue(typ.QssColor(), 'yellow'),
             "Foreground color of the URL in the statusbar when there's a "
             "warning."),

            ('statusbar.url.fg.hover',
             SettingValue(typ.QssColor(), 'aqua'),
             "Foreground color of the URL in the statusbar for hovered "
             "links."),

            ('tabs.fg.odd',
             SettingValue(typ.QtColor(), 'white'),
             "Foreground color of unselected odd tabs."),

            ('tabs.bg.odd',
             SettingValue(typ.QtColor(), 'grey'),
             "Background color of unselected odd tabs."),

            ('tabs.fg.even',
             SettingValue(typ.QtColor(), 'white'),
             "Foreground color of unselected even tabs."),

            ('tabs.bg.even',