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diff --git a/gnome2-accessibility-guide/C/themes.xml b/gnome2-accessibility-guide/C/themes.xml new file mode 100644 index 0000000..a3c03b7 --- /dev/null +++ b/gnome2-accessibility-guide/C/themes.xml @@ -0,0 +1,556 @@ +<?xml version="1.0" encoding="utf-8"?> +<chapter id="themes-0"> + <title>Customizing the Appearance of the Desktop</title> + <para>This chapter describes the methods you can use to change the appearance +of the desktop to enhance the accessibility of the desktop for users with +visual impairments.</para> + <sect1 id="themes-1"> + <title>Customization Options</title> + <para>There are a number of methods to enable you to customize the appearance +of the desktop to suit your specific needs, as follows:</para> + <variablelist> + <varlistentry> + <term>Themes</term> + <listitem> + <para>Themes are the most effective +way to change the appearance of the desktop in a consistent manner. See <xref linkend="themes-2"/> for more information about themes and how to use themes +to achieve the type of desktop that you require.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>Desktop and application-specific configuration settings</term> + <listitem> + <para>You can customize different components of the desktop +individually to achieve the display settings that you require. You can configure +the desktop and applications in addition to using themes or as an alternative +to using themes. See <xref linkend="themes-7"/> for more information.</para> + </listitem> + </varlistentry> + </variablelist> + <para>The following table summarizes the changes that you can +make to the desktop and where you can make the changes. This manual does not +provide detailed instructions about how to customize the desktop. For detailed +instructions about how to use the customization tools that the desktop provides, +refer to the online help for each tool or to the <citetitle>GNOME 2.0 Desktop User Guide</citetitle>.</para> + <table frame="topbot" id="themes-TBL-1"> + <title>Quick Reference to Customizing the Appearance of the Desktop</title> + <tgroup cols="2" colsep="0" rowsep="0"> + <colspec colname="colspec0" colwidth="33.04*"/> + <colspec colname="colspec1" colwidth="14.50*"/> + <thead> + <row rowsep="1"> + <entry> + <para>To change the...</para> + </entry> + <entry> + <para>Use...</para> + </entry> + </row> + </thead> + <tbody> + <row> + <entry> + <para>Overall appearance of the desktop to use high contrast colors, +low contrast colors, or large print.</para> + </entry> + <entry> + <para>The <application>Theme</application> preference tool.</para> + </entry> + </row> + <row> + <entry> + <para>Appearance of the desktop background only.</para> + </entry> + <entry> + <para>The <application>Background</application> preference tool and +the <application>Nautilus</application> file manager <guilabel>Preferences</guilabel> dialog.</para> + </entry> + </row> + <row> + <entry> + <para>Font displayed on the desktop background and in all desktop +applications.</para> + </entry> + <entry> + <para>The <application>Font</application> +preference tool.</para> + </entry> + </row> + <row> + <entry> + <para>Default font settings of the <application> gedit</application> +text editor or <application>Terminal</application> application. By default, <application> gedit</application> and <application>Terminal</application> use the default +application font that is specified in the <application>Font</application> +preference tool.</para> + </entry> + <entry> + <para>The <guilabel>Preferences</guilabel> +dialog for the application.</para> + </entry> + </row> + <row> + <entry colname="colspec0"> + <para>Appearance of icons and tabs in the <application>Nautilus</application> file manager application.</para> + </entry> + <entry colname="colspec1"> + <para>The <guilabel>View</guilabel> menu and the <guilabel>Preferences</guilabel> +dialog in the <application>Nautilus</application> file manager application.</para> + </entry> + </row> + </tbody> + </tgroup> + </table> + </sect1> + <sect1 id="themes-2"> + <title>Using Themes to Customize the Desktop</title> + <para>This section describes how to use themes to customize the appearance +of the desktop.</para> + <sect2 id="themes-3"> + <title>Introduction to Themes</title> + <para>You can use themes to modify and control the appearance of the desktop +in a consistent manner. A theme is a group of coordinated settings that specifies +how a desktop component or a group of desktop components appears. When you +apply a theme, the system modifies many desktop components simultaneously +to achieve the desired effect. For example, if you apply a theme that increases +the font size across the desktop, the theme also modifies the size of panels +and icons on the desktop for optimum compatibility with the font size. </para> + <para>The following types of themes affect different parts of the desktop: </para> + <variablelist> + <varlistentry> + <term>Desktop themes</term> + <listitem> + <para>Desktop themes determine +the visual appearance of all windows, applications, dialogs, panels, and applets. +Desktop themes also determine the visual appearance of the GNOME-compliant +interface items that appear on windows, panels, and applets, such as menus, +icons, and buttons. Some of the desktop themes that are available in the desktop are designed for special accessibility needs.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>Window frame themes</term> + <listitem> + <para>Window frame +themes determine the appearance of the frames around windows only.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><application>Nautilus</application> file manager themes</term> + <listitem> + <para><application>Nautilus</application> file manager themes +determine the appearance of desktop background objects, <application>Nautilus</application> icons, and the font used on tabs in the <application>Nautilus</application> side pane.</para> + </listitem> + </varlistentry> + </variablelist> + </sect2> + <sect2 id="themes-4"> + <title>To Choose a Desktop Theme</title> + <para>To open the <application>Theme</application> preference tool and view +the desktop themes that are available, choose <menuchoice><guimenu>Applications</guimenu><guisubmenu>Desktop Preferences</guisubmenu><guimenuitem>Theme</guimenuitem></menuchoice>. The <guilabel>Theme Preferences</guilabel> +dialog is displayed. Click on the <guilabel>Widget Theme</guilabel> tab to +display the desktop themes that are available. To choose a new theme for the +desktop, click on a theme in the <guilabel>Widget Theme</guilabel> list box. +The system automatically applies the theme to the desktop. </para> + <para>There are several desktop themes available that suit different accessibility +needs. These themes are described in the following table:</para> + <table frame="topbot" id="themes-TBL-2"> + <title>Desktop Themes Designed for Accessibility Requirements</title> + <tgroup cols="2" colsep="0" rowsep="0"> + <colspec colname="colspec0" colwidth="50*"/> + <colspec colname="colspec1" colwidth="50*"/> + <thead> + <row rowsep="1"> + <entry> + <para>Theme Name</para> + </entry> + <entry> + <para>Description</para> + </entry> + </row> + </thead> + <tbody> + <row> + <entry> + <para> + <guilabel>HighContrast</guilabel> + </para> + </entry> + <entry> + <para>Provides dark text on a light background using high contrast colors.</para> + </entry> + </row> + <row> + <entry colname="colspec0"> + <para> + <guilabel>HighContrastInverse</guilabel> + </para> + </entry> + <entry colname="colspec1"> + <para>Provides light text on a dark background using +high contrast colors.</para> + </entry> + </row> + <row> + <entry colname="colspec0"> + <para> + <guilabel>LowContrast</guilabel> + </para> + </entry> + <entry colname="colspec1"> + <para>Uses low contrast colors for the background +and foreground text. </para> + </entry> + </row> + <row> + <entry colname="colspec0"> + <para> + <guilabel>LargePrint</guilabel> + </para> + </entry> + <entry colname="colspec1"> + <para>Increases the font size to 18pt. The background +and foreground colors are the same as those specified by the <guilabel>Default</guilabel> desktop theme.</para> + </entry> + </row> + <row> + <entry> + <para> + <guilabel>HighContrastLargePrint</guilabel> + </para> + </entry> + <entry> + <para>Provides dark text on a light background using high contrast +colors and increases the font size to 18pt.</para> + </entry> + </row> + <row> + <entry> + <para> + <guilabel>HighContrastLargePrintInverse</guilabel> + </para> + </entry> + <entry> + <para>Provides light text on a dark background using high contrast +colors and increases the font size to 18pt.</para> + </entry> + </row> + <row> + <entry colname="colspec0"> + <para> + <guilabel>LowContrastLargePrint</guilabel> + </para> + </entry> + <entry colname="colspec1"> + <para>Uses low contrast colors for the background +and foreground text and increases the font size to 18pt. </para> + </entry> + </row> + </tbody> + </tgroup> + </table> + </sect2> + <sect2 id="themes-5"> + <title>To Choose a Window Frame Theme</title> + <para>To open the <application>Theme</application> preference tool and view +the window frame themes that are available, choose <menuchoice><guimenu>Applications</guimenu><guisubmenu>Desktop Preferences</guisubmenu><guimenuitem>Theme</guimenuitem></menuchoice>. The <guilabel>Theme Preferences</guilabel> +dialog is displayed. Click on the <guilabel>Window Frames</guilabel> tab to +display the window frame themes that are available. The <guilabel>Atlanta</guilabel> theme is an accessible theme. </para> + </sect2> + <sect2 id="themes-18"> + <title>To Choose a Nautilus Theme</title> + <para><application>Nautilus</application> file manager themes determine the +appearance of desktop background objects, <application>Nautilus</application> +icons, and the font used on tabs in the <application>Nautilus</application> +side pane. To select a Nautilus theme, perform the following steps:</para> + <orderedlist> + <listitem> + <para>Start the <application>Nautilus</application> file manager.</para> + </listitem> + <listitem> + <para>Choose <menuchoice><guimenu>Edit</guimenu><guimenuitem>Preferences</guimenuitem></menuchoice> to display the <guilabel>Preferences</guilabel> dialog. </para> + </listitem> + <listitem> + <para>Click on the <guilabel>Appearance</guilabel> category to display +the <application>Nautilus</application> themes that are available. The accessible <application>Nautilus</application> themes correspond to the accessible desktop themes +that are listed in <xref linkend="themes-TBL-2"/>.</para> + </listitem> + <listitem> + <para>Select the theme that matches the desktop theme that you selected.</para> + </listitem> + </orderedlist> + </sect2> + <sect2 id="themes-6"> + <title>To Create Your Own Themes</title> + <para>For information about how to create your own desktop themes and window frame +themes, see the <citetitle>GNOME 2.0 Desktop System Administration Guide</citetitle>. </para> + </sect2> + </sect1> + <sect1 id="themes-7"> + <title>Customizing Specific Components of the Desktop</title> + <para>This section describes how to customize specific components of the desktop +individually.</para> + <sect2 id="themes-8"> + <title>To Customize the Desktop Background</title> + <para>The desktop themes do not affect the desktop background. Therefore to +modify the desktop background to complement your desktop, you must customize +the desktop background separately using the <application>Background</application> +preference tool. To start the <application>Background</application> preference +tool, choose <menuchoice><guimenu>Applications</guimenu><guisubmenu>Desktop Preferences</guisubmenu><guimenuitem>Background</guimenuitem></menuchoice>.</para> + </sect2> + <sect2 id="themes-9"> + <title>To Customize Desktop Background Objects</title> + <para>The size of the icons that are displayed on the desktop background is +controlled by the <application>Nautilus</application> file manager. To change +the size of the icons, perform the following steps:</para> + <orderedlist> + <listitem> + <para>Start the <application>Nautilus</application> file manager.</para> + </listitem> + <listitem> + <para>Choose <menuchoice><guimenu>Edit</guimenu><guimenuitem>Preferences.</guimenuitem></menuchoice>.</para> + </listitem> + <listitem> + <para>Select the <guilabel>Views</guilabel> category.</para> + </listitem> + <listitem> + <para>In the <guilabel>Icon View Defaults</guilabel> group, select +the zoom level that you require in the <guilabel>Default zoom level</guilabel> +spin box.</para> + </listitem> + </orderedlist> + </sect2> + <sect2 id="themes-10"> + <title>To Customize Fonts</title> + <para>This section describes how to customize the font settings for the desktop +and frequently-used applications.</para> + <para>If you have difficulty with the default font type and font size that is used +on the desktop and desktop background, you can customize the font settings +to suit your needs. </para> + <para>You can specify individual font settings for the following desktop components and applications: </para> + <itemizedlist> + <listitem> + <para>Entire desktop excluding the desktop background</para> + </listitem> + <listitem> + <para>Desktop background only</para> + </listitem> + <listitem> + <para> + <application>Terminal</application> + </para> + </listitem> + <listitem> + <para><application>gedit</application> text editor</para> + </listitem> + <listitem> + <para><application>Nautilus</application> file manager</para> + </listitem> + </itemizedlist> + <sect3 id="themes-11"> + <title>To Customize the Desktop Fonts</title> + <para>The <application>Font</application> preference tool allows you to specify +the default fonts for the desktop. </para> + <para>To start the <application>Font</application> preference tool, choose <menuchoice><guimenu>Applications</guimenu><guisubmenu>Desktop Preferences</guisubmenu><guimenuitem>Font</guimenuitem></menuchoice>. The <guilabel>Font Preferences</guilabel> dialog contains the following options: </para> + <variablelist> + <varlistentry> + <term> + <guilabel>Application font</guilabel> + </term> + <listitem> + <para>Click on this button to select a default font to use for the text that +is displayed on the desktop, including the text displayed on the windows and +dialogs associated with GNOME-compliant applications and applets.</para> + <note> + <para>If you use the <application>Theme</application> preference tool +to select a theme that modifies the application font, the theme setting overrides +the font that you select using the <application>Font</application> preference +tool.</para> + </note> + </listitem> + </varlistentry> + <varlistentry> + <term> + <guilabel>Desktop font</guilabel> + </term> + <listitem> + <para>Click on this button to select a font to use for the text that is displayed +on the desktop background only.</para> + </listitem> + </varlistentry> + </variablelist> + <note> + <para>If you use large fonts, you may need to change the size of panes +in applications that use panes such as, <application>Nautilus</application> +file manager and <application>Yelp</application>. </para> + </note> + </sect3> + <sect3 id="themes-12"> + <title>To Customize the Terminal Font</title> + <para>By default, the <application>Terminal</application> application uses +the default font settings that are specified in the <application>Font</application> +preference tool to display the text in the <application>Terminal</application> +window components such as the titlebar, toolbar, menubar, and application +dialogs. However, <application>Terminal</application> uses fixed-width fonts +to display the contents of the <application>Terminal</application> window, +that is the text that is displayed at the command line. </para> + <para>To change the font settings for the contents of the <application>Terminal</application> window, start the <application>Terminal</application> application, +then choose <menuchoice><guimenu>Edit</guimenu><guimenuitem>Current +Profile</guimenuitem></menuchoice>. In the <guilabel>General</guilabel> tabbed +section, specify a font for the window contents as follows:</para> + <orderedlist> + <listitem> + <para>Deselect the <guilabel>Use the same font as other applications</guilabel> option. </para> + </listitem> + <listitem> + <para>Click on the font selector button to select the font type +and font size to use for the contents of the <application>Terminal</application> +window.</para> + </listitem> + </orderedlist> + </sect3> + <sect3 id="themes-13"> + <title>To Customize the gedit Text Editor Font</title> + <para>By default, the <application>gedit</application> application uses the +default font settings that are specified in the <application>Font</application> +preference tool to display the text in the <application>gedit</application> +window components such as the menubar, toolbar, and application dialogs. However, +you can customize the font that <application>gedit</application> uses to display +the text editor window contents. To customize the font settings for the <application>gedit</application> window contents, perform the following steps:</para> + <orderedlist> + <listitem> + <para>In the <application>gedit</application> application, choose <menuchoice><guimenu>Edit</guimenu><guimenuitem>Preferences</guimenuitem></menuchoice>.</para> + </listitem> + <listitem> + <para>In the <guilabel>Preferences</guilabel> dialog, select the <guilabel>Fonts & Colors</guilabel> category.</para> + </listitem> + <listitem> + <para>Perform one of the following steps:</para> + <itemizedlist> + <listitem> + <para>To use the default desktop font that is specified in the <application>Font</application> preference tool, select the <guilabel>Use default theme +font</guilabel> option.</para> + </listitem> + <listitem> + <para>To specify a font, deselect the <guilabel>Use default theme +font</guilabel> option, then click on the <guibutton>Font used by the editor</guibutton> button to display the font selector dialog.</para> + </listitem> + </itemizedlist> + </listitem> + </orderedlist> + </sect3> + <sect3 id="themes-14"> + <title>To Customize the Nautilus File Manager Font</title> + <para>By default, the <application>Nautilus</application> file manager uses +the default font settings that are specified in the <application>Font</application> +preference tool to display the text in the file manager window. However, you +can further customize the font that is used in the file manager view pane. +To customize the font that is used in the view pane, click on the <guimenu>View</guimenu> menu in the file manager, then select one of the following +menu items:</para> + <itemizedlist> + <listitem> + <para>To enlarge the text, select <guimenuitem>Zoom In</guimenuitem>.</para> + </listitem> + <listitem> + <para>To reduce the text, select <guimenuitem>Zoom Out</guimenuitem>.</para> + </listitem> + <listitem> + <para>To reset the text to the default font setting, select <guimenuitem>Normal Size</guimenuitem>.</para> + </listitem> + </itemizedlist> + </sect3> + </sect2> + </sect1> + <sect1 id="themes-15"> + <title>Meeting Specific Accessibility Needs</title> + <para>The following sections summarize the steps you need to take to improve +the accessibility of the desktop in a particular area. </para> + <sect2 id="themes-16"> + <title>To Achieve a High or Low Contrast Desktop</title> + <para>To achieve a high or low contrast desktop, perform the following steps:</para> + <orderedlist> + <listitem> + <para>Use the <application>Theme</application> preference tool to +select the high contrast or low contrast desktop theme that you require.</para> + </listitem> + <listitem> + <para>Use the <application>Theme</application> preference tool to +select a window frame theme. You should select the <guilabel>Atlanta</guilabel> +window frame theme for use with high contrast desktop themes. The <guilabel>Atlanta</guilabel> window frame theme may also improve readability for some +users. However, you can choose the window frame theme that best suits your +needs. </para> + </listitem> + <listitem> + <para>In the <guilabel>Nautilus Preferences</guilabel> dialog, select +a <application>Nautilus</application> theme to match the high contrast or +low contrast desktop theme that you selected. See <xref linkend="themes-18"/> +for more information.</para> + </listitem> + <listitem> + <para>Use the <application>Background</application> preference tool +to customize your desktop background as follows:</para> + <itemizedlist> + <listitem> + <para>Set the <guilabel>Picture Options</guilabel> to <guilabel>No Picture</guilabel>.</para> + </listitem> + <listitem> + <para>Set the <guilabel>Background Style</guilabel> to <guilabel>Solid color</guilabel>.</para> + </listitem> + <listitem> + <para>Select a background color that suits your needs.</para> + </listitem> + </itemizedlist> + </listitem> + <listitem> + <para>In the <application>Terminal</application> application, ensure +that the <guilabel>Use colors from system theme</guilabel> option is selected +in the <guilabel>Edit Profile</guilabel> dialog.</para> + </listitem> + <listitem> + <para>In the <application>gedit</application> application, ensure +that the <guilabel>Use default theme colors</guilabel> option is selected +in the <guilabel>Preferences</guilabel> dialog.</para> + </listitem> + </orderedlist> + </sect2> + <sect2 id="themes-17"> + <title>To Achieve a Large Print Desktop</title> + <para>To achieve a large print desktop, perform the following steps:</para> + <orderedlist> + <listitem> + <para>Use the <application>Theme</application> preference tool to +select the large print theme that you require.</para> + </listitem> + <listitem> + <para>Use the <application>Theme</application> preference tool to +select a window frame theme. You can use the <guilabel>Crux</guilabel>, <guilabel>Atlanta</guilabel>, or <guilabel>Bright</guilabel> window frame themes with +large print desktop themes, depending on the contrast level that you prefer.</para> + </listitem> + <listitem> + <para>Use the <application>Font</application> preference tool to +increase the font that is displayed on desktop background objects.</para> + </listitem> + <listitem> + <para>In the <guilabel>Nautilus Preferences</guilabel> dialog, select +a <application>Nautilus</application> theme to match the large print desktop +theme that you selected. See <xref linkend="themes-18"/> for more information.</para> + </listitem> + <listitem> + <para>Increase the font size that is used to display the contents +of the <application>Terminal</application> application window. See <xref linkend="themes-12"/> +for more information.</para> + </listitem> + <listitem> + <para>If the <guilabel>Use default theme font</guilabel> option +is selected in the <application>gedit</application> <guilabel>Preferences</guilabel> dialog, <application>gedit</application> uses the font size that +is specified in the large print theme that you selected. However, if the <guilabel>Use default theme font</guilabel> option is not selected, increase the font +size that is used to display the contents of the <application>gedit</application> +text editor window. See <xref linkend="themes-13"/> for more information.</para> + </listitem> + <listitem> + <para>If you use applications that use panes, such as <application>Nautilus</application> file manager and the Help browser, you may need to +change the size of panes to accomodate the large print. See the online help +for the appropriate application for more information.</para> + </listitem> + </orderedlist> + </sect2> + </sect1> +</chapter> |