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     9 -->  <!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"><concept id="GUID-A1DBE03F-728E-4F31-BE74-5BDA3906C8DD" xml:lang="en"><title>Themes</title><prolog><metadata><keywords></keywords></metadata></prolog><conbody>

    10 <fig id="GUID-26C36C79-765F-4E2A-85F8-BE2C44FDBBDA"><title>Personalization through themes</title><image href="GUID-B45B4D81-E2DF-436F-8138-8DAB6BAB27C9_d0e67325_href.png"></image></fig>

    11 <p>The term <i>theme</i> refers to a set of design elements installed in

    12 a package in a mobile device based on the Symbian platform that determines

    13 the visual appearance of the UI. Themes, also known as <i>skins</i>, only

    14 affect the visual appearance of the UI, the underlying architecture, interaction

    15 style, language settings, and general functionality are not affected. The

    16 Symbian platform provides an API to allow you to support themes in your applications.

    17 Although a mobile device based on the Symbian platform can contain several

    18 themes, mobile device users can only activate one theme at a time. When a

    19 new theme is activated, the appearance of all applications that support themes

    20 is altered.</p>

    21 <p>The following list contains some of the UI design elements that can

    22 change:</p>

    23 <ul>

    24 <li><p>display background</p></li>

    25 <li><p>color palette</p></li>

    26 <li><p>highlights</p></li>

    27 <li><p>pop-up window appearance</p></li>

    28 <li><p>ring tones</p></li>

    29 <li><p>common component look and feel</p></li>

    30 </ul>

    31 <p>Themes also support SVG-T graphics, which allow them to be scalable.

    32 Themes can contain bitmaps or SVG graphics or a mixture of both. </p>

    33 <p>For more information on the API that enables theme support in applications,

    34 see the Skins

    35 API documentation.</p>

    36 <p>For information on tools available for creating and modifying themes,

    37 see <xref scope="external" href="http://www.forum.nokia.com/main/resources/technologies/nokia_themes.html">Forum

    38 Nokia</xref>.</p>

    39 </conbody></concept>