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If you require this 69 parameter, the manifest key 70 <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> 71 can ensure that your extension won't be run in an earlier browser version. 72 </dd> 73 74 <!-- OBJECT PROPERTIES --> 75 <dd> 76 <dl> 77 <div> 78 <div> 79 </div> 80 </div> 81 </dl> 82 </dd> 83 84 <!-- OBJECT METHODS --> 85 <dd> 86 <div></div> 87 </dd> 88 89 <!-- OBJECT EVENT FIELDS --> 90 <dd> 91 <div></div> 92 </dd> 93 94 <!-- FUNCTION PARAMETERS --> 95 <dd> 96 <div></div> 97 </dd> 98 99 </div> <!-- /VALUE --> 100 101 <div id="functionParametersTemplate"> 102 <h5>Parameters</h5> 103 <dl> 104 <div> 105 <div> 106 </div> 107 </div> 108 </dl> 109 </div> 110 </div> <!-- /SUBTEMPLATES --> 111 112 <a id="top"></a> 113 <div id="skipto"> 114 <a href="#gc-pagecontent">Skip to page content</a> 115 <a href="#gc-toc">Skip to main navigation</a> 116 </div> 117 <!-- API HEADER --> 118 <table id="header" width="100%" cellspacing="0" border="0"> 119 <tbody><tr> 120 <td valign="middle"><a href="http://code.google.com/"><img src="images/code_labs_logo.gif" height="43" width="161" alt="Google Code Labs" style="border:0; 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250 </script> 251 252 <div class="g-unit" id="gc-pagecontent"> 253 <div id="pageTitle"> 254 <h1 class="page_title">Themes</h1> 255 </div> 256 <!-- TABLE OF CONTENTS --> 257 <div id="toc"> 258 <h2>Contents</h2> 259 <ol> 260 <li> 261 <a href="#manifest"> Manifest </a> 262 <ol> 263 <li> 264 <a href="#colors">colors</a> 265 </li><li> 266 <a href="#images">images</a> 267 </li><li> 268 <a href="#properties">properties</a> 269 </li><li> 270 <a href="#tints">tints</a> 271 </li> 272 </ol> 273 </li><li> 274 <a href="#moredoc"> Additional documentation </a> 275 <ol> 276 <li style="display: none; "> 277 <a>h3Name</a> 278 </li> 279 </ol> 280 </li> 281 <li style="display: none; "> 282 <a href="#apiReference">API reference</a> 283 <ol> 284 <li> 285 <a href="#properties">Properties</a> 286 <ol> 287 <li> 288 <a href="#property-anchor">propertyName</a> 289 </li> 290 </ol> 291 </li> 292 <li> 293 <a>Methods</a> 294 <ol> 295 <li> 296 <a href="#method-anchor">methodName</a> 297 </li> 298 </ol> 299 </li> 300 <li> 301 <a>Events</a> 302 <ol> 303 <li> 304 <a href="#event-anchor">eventName</a> 305 </li> 306 </ol> 307 </li> 308 <li> 309 <a href="#types">Types</a> 310 <ol> 311 <li> 312 <a href="#id-anchor">id</a> 313 </li> 314 </ol> 315 </li> 316 </ol> 317 </li> 318 </ol> 319 </div> 320 <!-- /TABLE OF CONTENTS --> 321 322 <!-- Standard content lead-in for experimental API pages --> 323 <p id="classSummary" style="display: none; "> 324 For information on how to use experimental APIs, see the <a href="experimental.html">chrome.experimental.* APIs</a> page. 325 </p> 326 327 <!-- STATIC CONTENT PLACEHOLDER --> 328 <div id="static"><div id="pageData-showTOC" class="pageData">true</div> 329 330 <p> 331 A <em>theme</em> is a special kind of extension 332 that changes the way the browser looks. 333 Themes are <a href="packaging.html">packaged</a> like regular extensions, 334 but they don't contain JavaScript or HTML code. 335 </p> 336 337 <p> 338 You can find and try a bunch of themes at the 339 <a href="https://tools.google.com/chrome/intl/en/themes/">themes gallery</a>. 340 </p> 341 342 <img src="images/themes-1.gif" width="100" height="80" alt="grassy theme"> 343 344 <img src="images/themes-2.gif" width="100" height="80" alt="dark theme"> 345 346 <img src="images/themes-3.gif" width="100" height="80" alt="foggy theme"> 347 348 <h2 id="manifest"> Manifest </h2> 349 <p> 350 Here is an example 351 <a href="manifest.html"><code>manifest.json</code></a> 352 file for a theme: 353 </p> 354 355 <!-- [PENDING: This page should eventually be (or point to) something that's very friendly to artists. You should only have to look at one page to create a theme. --> 356 357 <pre>{ 358 "version": "2.6", 359 "name": "camo theme", 360 <b> "theme": { 361 "<a href="#images">images</a>" : { 362 "theme_frame" : "images/theme_frame_camo.png", 363 "theme_frame_overlay" : "images/theme_frame_stripe.png", 364 "theme_toolbar" : "images/theme_toolbar_camo.png", 365 "theme_ntp_background" : "images/theme_ntp_background_norepeat.png", 366 "theme_ntp_attribution" : "images/attribution.png" 367 }, 368 "<a href="#colors">colors</a>" : { 369 "frame" : [71, 105, 91], 370 "toolbar" : [207, 221, 192], 371 "ntp_text" : [20, 40, 0], 372 "ntp_link" : [36, 70, 0], 373 "ntp_section" : [207, 221, 192], 374 "button_background" : [255, 255, 255] 375 }, 376 "<a href="#tints">tints</a>" : { 377 "buttons" : [0.33, 0.5, 0.47] 378 }, 379 "<a href="#properties">properties</a>" : { 380 "ntp_background_alignment" : "bottom" 381 } 382 }</b> 383 } 384 </pre> 385 386 <h3 id="colors">colors</h3> 387 388 <p> 389 Colors are in RGB format. 390 To find the strings you can use within the "colors" field, 391 look for kColor* strings in 392 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/themes/theme_service.cc"><code>theme_service.cc</code></a>. 393 </p> 394 395 <h3 id="images">images</h3> 396 397 <p> 398 Image resources use paths relative to the root of the extension. 399 You can override any of the images that are specified by 400 <code>kThemeableImages</code> in 401 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/themes/theme_service.cc"><code>theme_service.cc</code></a>. 402 Just remove the "IDR_" 403 and convert the remaining characters to lowercase. 404 For example, <code>IDR_THEME_NTP_BACKGROUND</code> 405 (which <code>kThemeableImages</code> uses 406 to specify the background of the new tab pane) 407 corresponds to "theme_ntp_background". 408 </p> 409 410 <h3 id="properties">properties</h3> 411 412 <p> 413 This field lets you specify 414 properties such as background alignment, 415 background repeat, 416 and an alternate logo. 417 To see the properties and the values they can have, see 418 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/themes/theme_service.cc"><code>theme_service.cc</code></a>. 419 <!-- [PENDING: We should flesh this out.] --> 420 </p> 421 422 <h3 id="tints">tints</h3> 423 424 <p> 425 You can specify tints to be applied to parts of the UI 426 such as buttons, the frame, and the background tab. 427 Google Chrome supports tints, not images, 428 because images don't work across platforms 429 and are brittle in the case of adding new buttons. 430 To find the strings you can use within the "tints" field, 431 look for kTint* strings in 432 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/themes/theme_service.cc"><code>theme_service.cc</code></a>. 433 </p> 434 435 <p> 436 Tints are in Hue-Saturation-Lightness (HSL) format, 437 using floating-point numbers in the range 0 - 1.0: 438 </p> 439 440 <ul> 441 <li> 442 <b>Hue</b> is an absolute value, with 0 and 1 being red. 443 </li> 444 <li> 445 <b>Saturation</b> is relative to the currently provided image. 446 0.5 is <em>no change</em>, 447 0 is <em>totally desaturated</em>, 448 and 1 is <em>full saturation</em>. 449 </li> 450 <li> 451 <b>Lightness</b> is also relative, 452 with 0.5 being <em>no change</em>, 453 0 as <em>all pixels black</em>, 454 and 1 as <em>all pixels white</em>. 455 </li> 456 </ul> 457 458 <p> 459 You can alternatively use <code>-1.0</code> for any of the HSL values 460 to specify <em>no change</em>. 461 </p> 462 463 464 <h2 id="moredoc"> Additional documentation </h2> 465 466 <p> 467 Community-written documentation to help you write themes is here: 468 </p> 469 470 <blockquote> 471 <a href="http://code.google.com/p/chromium/wiki/ThemeCreationGuide">http://code.google.com/p/chromium/wiki/ThemeCreationGuide</a> 472 </blockquote> 473 </div> 474 475 <!-- API PAGE --> 476 <div class="apiPage" style="display: none; "> 477 <a name="apiReference"></a> 478 <h2>API reference: chrome.apiname </h2> 479 480 <!-- PROPERTIES --> 481 <div class="apiGroup"> 482 <a name="properties"></a> 483 <h3 id="properties">Properties</h3> 484 485 <div> 486 <a></a> 487 <h4>getLastError</h4> 488 <div class="summary"> 489 <!-- Note: intentionally longer 80 columns --> 490 <span>chrome.extension</span><span>lastError</span> 491 </div> 492 <div> 493 </div> 494 </div> 495 496 </div> <!-- /apiGroup --> 497 498 <!-- METHODS --> 499 <div id="methodsTemplate" class="apiGroup"> 500 <a></a> 501 <h3>Methods</h3> 502 503 <!-- iterates over all functions --> 504 <div class="apiItem"> 505 <a></a> <!-- method-anchor --> 506 <h4>method name</h4> 507 508 <div class="summary"><span>void</span> 509 <!-- Note: intentionally longer 80 columns --> 510 <span>chrome.module.methodName</span>(<span><span>, </span><span></span> 511 <var><span></span></var></span>)</div> 512 513 <div class="description"> 514 <p class="todo">Undocumented.</p> 515 <p> 516 A description from the json schema def of the function goes here. 517 </p> 518 519 <!-- PARAMETERS --> 520 <h4>Parameters</h4> 521 <dl> 522 <div> 523 <div> 524 </div> 525 </div> 526 </dl> 527 528 <!-- RETURNS --> 529 <h4>Returns</h4> 530 <dl> 531 <div> 532 <div> 533 </div> 534 </div> 535 </dl> 536 537 <!-- CALLBACK --> 538 <div> 539 <div> 540 <h4>Callback function</h4> 541 <p> 542 The callback <em>parameter</em> should specify a function 543 that looks like this: 544 </p> 545 <p> 546 If you specify the <em>callback</em> parameter, it should 547 specify a function that looks like this: 548 </p> 549 550 <!-- Note: intentionally longer 80 columns --> 551 <pre>function(<span>Type param1, Type param2</span>) <span class="subdued">{...}</span>;</pre> 552 <dl> 553 <div> 554 <div> 555 </div> 556 </div> 557 </dl> 558 </div> 559 </div> 560 561 <!-- MIN_VERSION --> 562 <p> 563 This function was added in version <b><span></span></b>. 564 If you require this function, the manifest key 565 <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> 566 can ensure that your extension won't be run in an earlier browser version. 567 </p> 568 </div> <!-- /description --> 569 570 </div> <!-- /apiItem --> 571 572 </div> <!-- /apiGroup --> 573 574 <!-- EVENTS --> 575 <div id="eventsTemplate" class="apiGroup"> 576 <a></a> 577 <h3>Events</h3> 578 <!-- iterates over all events --> 579 <div class="apiItem"> 580 <a></a> 581 <h4>event name</h4> 582 583 <div class="summary"> 584 <!-- Note: intentionally longer 80 columns --> 585 <span class="subdued">chrome.bookmarks</span><span>onEvent</span><span class="subdued">.addListener</span>(function(<span>Type param1, Type param2</span>) <span class="subdued">{...}</span>); 586 </div> 587 588 <div class="description"> 589 <p class="todo">Undocumented.</p> 590 <p> 591 A description from the json schema def of the event goes here. 592 </p> 593 594 <!-- PARAMETERS --> 595 <div> 596 <h4>Parameters</h4> 597 <dl> 598 <div> 599 <div> 600 </div> 601 </div> 602 </dl> 603 </div> 604 </div> <!-- /decription --> 605 606 </div> <!-- /apiItem --> 607 608 </div> <!-- /apiGroup --> 609 610 <!-- TYPES --> 611 <div class="apiGroup"> 612 <a name="types"></a> 613 <h3 id="types">Types</h3> 614 615 <!-- iterates over all types --> 616 <div class="apiItem"> 617 <a></a> 618 <h4>type name</h4> 619 620 <div> 621 </div> 622 623 </div> <!-- /apiItem --> 624 625 </div> <!-- /apiGroup --> 626 627 </div> <!-- /apiPage --> 628 </div> <!-- /gc-pagecontent --> 629 </div> <!-- /g-section --> 630 </div> <!-- /codesiteContent --> 631 <div id="gc-footer" --=""> 632 <div class="text"> 633 <p> 634 Except as otherwise <a href="http://code.google.com/policies.html#restrictions">noted</a>, 635 the content of this page is licensed under the <a rel="license" href="http://creativecommons.org/licenses/by/3.0/">Creative Commons 636 Attribution 3.0 License</a>, and code samples are licensed under the 637 <a rel="license" href="http://code.google.com/google_bsd_license.html">BSD License</a>. 638 </p> 639 <p> 640 2011 Google 641 </p> 642 643 <!-- begin analytics --> 644 <script src="http://www.google-analytics.com/urchin.js" type="text/javascript"></script> 645 <script src="http://www.google-analytics.com/ga.js" type="text/javascript"></script> 646 647 <script type="text/javascript"> 648 // chrome doc tracking 649 try { 650 var engdocs = _gat._getTracker("YT-10763712-2"); 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