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| 159 <li><h2>Reference</h2> | |
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| 161 <li>Formats | |
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| 173 <div class="line"> </div> | |
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ide.html">Hosted Apps</a></li> | |
| 178 <li class="leftNavSelected">Themes</li> | |
| 179 </ul> | |
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| 188 <h1 class="page_title">Themes</h1> | |
| 189 </div> | |
| 190 <!-- TABLE OF CONTENTS --> | |
| 191 <div id="toc"> | |
| 192 <h2>Contents</h2> | |
| 193 <ol> | |
| 194 <li> | |
| 195 <a href="#manifest"> Manifest </a> | |
| 196 <ol> | |
| 197 <li> | |
| 198 <a href="#colors">colors</a> | |
| 199 </li><li> | |
| 200 <a href="#images">images</a> | |
| 201 </li><li> | |
| 202 <a href="#properties">properties</a> | |
| 203 </li><li> | |
| 204 <a href="#tints">tints</a> | |
| 205 </li> | |
| 206 </ol> | |
| 207 </li><li> | |
| 208 <a href="#moredoc"> Additional documentation </a> | |
| 209 <ol> | |
| 210 </ol> | |
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| 217 <div id="static"><div id="pageData-showTOC" class="pageData">true</div> | |
| 218 <p> | |
| 219 A <em>theme</em> is a special kind of extension | |
| 220 that changes the way the browser looks. | |
| 221 Themes are <a href="packaging.html">packaged</a> like regular extensions, | |
| 222 but they don't contain JavaScript or HTML code. | |
| 223 </p> | |
| 224 <p> | |
| 225 You can find and try a bunch of themes at the | |
| 226 <a href="https://chrome.google.com/webstore/category/themes">Chrome Web Store</a
>. | |
| 227 </p> | |
| 228 <img src="images/themes-1.gif" width="100" height="80" alt="grassy theme"> | |
| 229 <img src="images/themes-2.gif" width="100" height="80" alt="dark theme"> | |
| 230 <img src="images/themes-3.gif" width="100" height="80" alt="foggy theme"> | |
| 231 <h2 id="manifest"> Manifest </h2> | |
| 232 <p> | |
| 233 Here is an example | |
| 234 <a href="manifest.html"><code>manifest.json</code></a> | |
| 235 file for a theme: | |
| 236 </p> | |
| 237 <!-- [PENDING: This page should eventually be (or point to) something that's ver
y friendly to artists. You should only have to look at one page to create a the
me. --> | |
| 238 <pre>{ | |
| 239 "version": "2.6", | |
| 240 "name": "camo theme", | |
| 241 <b> "theme": { | |
| 242 "<a href="#images">images</a>" : { | |
| 243 "theme_frame" : "images/theme_frame_camo.png", | |
| 244 "theme_frame_overlay" : "images/theme_frame_stripe.png
", | |
| 245 "theme_toolbar" : "images/theme_toolbar_camo.png", | |
| 246 "theme_ntp_background" : "images/theme_ntp_background_
norepeat.png", | |
| 247 "theme_ntp_attribution" : "images/attribution.png" | |
| 248 }, | |
| 249 "<a href="#colors">colors</a>" : { | |
| 250 "frame" : [71, 105, 91], | |
| 251 "toolbar" : [207, 221, 192], | |
| 252 "ntp_text" : [20, 40, 0], | |
| 253 "ntp_link" : [36, 70, 0], | |
| 254 "ntp_section" : [207, 221, 192], | |
| 255 "button_background" : [255, 255, 255] | |
| 256 }, | |
| 257 "<a href="#tints">tints</a>" : { | |
| 258 "buttons" : [0.33, 0.5, 0.47] | |
| 259 }, | |
| 260 "<a href="#properties">properties</a>" : { | |
| 261 "ntp_background_alignment" : "bottom" | |
| 262 } | |
| 263 }</b> | |
| 264 } | |
| 265 </pre> | |
| 266 <h3 id="colors">colors</h3> | |
| 267 <p> | |
| 268 Colors are in RGB format. | |
| 269 To find the strings you can use within the "colors" field, | |
| 270 look for kColor* strings in | |
| 271 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/themes/t
heme_service.cc"><code>theme_service.cc</code></a>. | |
| 272 </p> | |
| 273 <h3 id="images">images</h3> | |
| 274 <p> | |
| 275 Image resources use paths relative to the root of the extension. | |
| 276 You can override any of the images that are specified by | |
| 277 <code>kThemeableImages</code> in | |
| 278 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/themes/t
heme_service.cc"><code>theme_service.cc</code></a>. | |
| 279 Just remove the "IDR_" | |
| 280 and convert the remaining characters to lowercase. | |
| 281 For example, <code>IDR_THEME_NTP_BACKGROUND</code> | |
| 282 (which <code>kThemeableImages</code> uses | |
| 283 to specify the background of the new tab pane) | |
| 284 corresponds to "theme_ntp_background". | |
| 285 </p> | |
| 286 <h3 id="properties">properties</h3> | |
| 287 <p> | |
| 288 This field lets you specify | |
| 289 properties such as background alignment, | |
| 290 background repeat, | |
| 291 and an alternate logo. | |
| 292 To see the properties and the values they can have, see | |
| 293 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/themes/t
heme_service.cc"><code>theme_service.cc</code></a>. | |
| 294 <!-- [PENDING: We should flesh this out.] --> | |
| 295 </p> | |
| 296 <h3 id="tints">tints</h3> | |
| 297 <p> | |
| 298 You can specify tints to be applied to parts of the UI | |
| 299 such as buttons, the frame, and the background tab. | |
| 300 Google Chrome supports tints, not images, | |
| 301 because images don't work across platforms | |
| 302 and are brittle in the case of adding new buttons. | |
| 303 To find the strings you can use within the "tints" field, | |
| 304 look for kTint* strings in | |
| 305 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/themes/t
heme_service.cc"><code>theme_service.cc</code></a>. | |
| 306 </p> | |
| 307 <p> | |
| 308 Tints are in Hue-Saturation-Lightness (HSL) format, | |
| 309 using floating-point numbers in the range 0 - 1.0: | |
| 310 </p> | |
| 311 <ul> | |
| 312 <li> | |
| 313 <b>Hue</b> is an absolute value, with 0 and 1 being red. | |
| 314 </li> | |
| 315 <li> | |
| 316 <b>Saturation</b> is relative to the currently provided image. | |
| 317 0.5 is <em>no change</em>, | |
| 318 0 is <em>totally desaturated</em>, | |
| 319 and 1 is <em>full saturation</em>. | |
| 320 </li> | |
| 321 <li> | |
| 322 <b>Lightness</b> is also relative, | |
| 323 with 0.5 being <em>no change</em>, | |
| 324 0 as <em>all pixels black</em>, | |
| 325 and 1 as <em>all pixels white</em>. | |
| 326 </li> | |
| 327 </ul> | |
| 328 <p> | |
| 329 You can alternatively use <code>-1.0</code> for any of the HSL values | |
| 330 to specify <em>no change</em>. | |
| 331 </p> | |
| 332 <h2 id="moredoc"> Additional documentation </h2> | |
| 333 <p> | |
| 334 Community-written documentation to help you write themes is here: | |
| 335 </p> | |
| 336 <blockquote> | |
| 337 <a href="http://code.google.com/p/chromium/wiki/ThemeCreationGuide">http://code.
google.com/p/chromium/wiki/ThemeCreationGuide</a> | |
| 338 </blockquote> | |
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