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<h1 id="image-effects">Image Effects</h1>
<p>The theme offers <a href="/hugo-theme-relearn/authoring/markdown/index.html#image-effects">graphical effects</a> for your linked images.</p>
<p>You can <a href="/hugo-theme-relearn/configuration/customization/imageeffects/index.html">define additional custom image effects and set defaults</a> in your configuration.</p>
<p>The default image effects shipped with the theme are</p>
<table>
<thead>
<tr>
<th style="text-align: left">Name</th>
<th style="text-align: left">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align: left">border</td>
<td style="text-align: left">Draws a light thin border around the image</td>
</tr>
<tr>
<td style="text-align: left">lazy</td>
<td style="text-align: left">Lets the image be lazy loaded</td>
</tr>
<tr>
<td style="text-align: left">lightbox</td>
<td style="text-align: left">The image will be clickable to show it enlarged</td>
</tr>
<tr>
<td style="text-align: left">shadow</td>
<td style="text-align: left">Draws a shadow around the image to make it appear hovered/glowing</td>
</tr>
</tbody>
</table>
<p>One way to use them is to add them as URL query parameter to each individually linked image.</p>
<p>This can become cumbersome to be done consistently for the whole site. Instead, you can <a href="/hugo-theme-relearn/configuration/customization/imageeffects/index.html">configure the defaults</a> in your <code>hugo.toml</code> as well as overriding these defaults in a page&rsquo;s front matter.</p>
<p>Explicitly set URL query parameter will override the defaults set for a page or your site.</p>
<p>Without any settings in your <code>hugo.toml</code> <code>imageEffects</code> defaults to</p>
<div class="tab-panel" data-tab-group="config-code">
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data-tab-item="toml"
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onclick="switchTab('config-code','toml')"
>
<span class="tab-nav-text">toml</span>
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class="tab-content tab-panel-style cstyle initial active">
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<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-toml" data-lang="toml"><span class="line"><span class="cl"><span class="p">[</span><span class="nx">imageEffects</span><span class="p">]</span>
</span></span><span class="line"><span class="cl"> <span class="nx">border</span> <span class="p">=</span> <span class="kc">false</span>
</span></span><span class="line"><span class="cl"> <span class="nx">lazy</span> <span class="p">=</span> <span class="kc">true</span>
</span></span><span class="line"><span class="cl"> <span class="nx">lightbox</span> <span class="p">=</span> <span class="kc">true</span>
</span></span><span class="line"><span class="cl"> <span class="nx">shadow</span> <span class="p">=</span> <span class="kc">false</span></span></span></code></pre></div>
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</div>
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data-tab-item="yaml"
class="tab-content tab-panel-style cstyle initial">
<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"><span class="line"><span class="cl"><span class="nt">imageEffects</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">border</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">lazy</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">lightbox</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">shadow</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span></span></span></code></pre></div>
</div>
</div>
<div
data-tab-item="json"
class="tab-content tab-panel-style cstyle initial">
<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-json" data-lang="json"><span class="line"><span class="cl"><span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;imageEffects&#34;</span><span class="p">:</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;border&#34;</span><span class="p">:</span> <span class="kc">false</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;lazy&#34;</span><span class="p">:</span> <span class="kc">true</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;lightbox&#34;</span><span class="p">:</span> <span class="kc">true</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;shadow&#34;</span><span class="p">:</span> <span class="kc">false</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl"><span class="p">}</span></span></span></code></pre></div>
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</div>
<p><span class="badge cstyle green badge-with-title"><span class="badge-title"><i class="fa-fw fab fa-markdown"></i></span><span class="badge-content">Front Matter</span></span> This can be overridden in a pages front matter for example by</p>
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<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-toml" data-lang="toml"><span class="line"><span class="cl"><span class="err">+++</span>
</span></span><span class="line"><span class="cl"><span class="p">[</span><span class="nx">imageEffects</span><span class="p">]</span>
</span></span><span class="line"><span class="cl"> <span class="nx">lazy</span> <span class="p">=</span> <span class="kc">false</span>
</span></span><span class="line"><span class="cl"><span class="err">+++</span></span></span></code></pre></div>
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<div
data-tab-item="yaml"
class="tab-content tab-panel-style cstyle initial">
<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"><span class="line"><span class="cl"><span class="nn">---</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nt">imageEffects</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">lazy</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nn">---</span></span></span></code></pre></div>
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</div>
<div
data-tab-item="json"
class="tab-content tab-panel-style cstyle initial">
<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-json" data-lang="json"><span class="line"><span class="cl"><span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;imageEffects&#34;</span><span class="p">:</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;lazy&#34;</span><span class="p">:</span> <span class="kc">false</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl"><span class="p">}</span></span></span></code></pre></div>
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</div>
</div>
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<p>Or by explicitly override settings by URL query parameter</p>
<div class="tab-panel" data-tab-group="71c464153651b4e9d78e274660206523">
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<div class="tab-nav-title">&#8203;</div>
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class="tab-nav-button tab-panel-style cstyle initial active" tabindex="-1"
onclick="switchTab('71c464153651b4e9d78e274660206523','url')"
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<span class="tab-nav-text">URL</span>
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<div
data-tab-item="url"
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<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-md" data-lang="md"><span class="line"><span class="cl">![<span class="nt">Minion</span>](<span class="na">https://octodex.github.com/images/minion.png?lazy=true&amp;lightbox=false</span>)</span></span></code></pre></div>
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</div>
</div><p>The settings applied to the above image would be</p>
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data-tab-item="yaml"
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onclick="switchTab('config-code','yaml')"
>
<span class="tab-nav-text">yaml</span>
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data-tab-item="json"
class="tab-nav-button tab-panel-style cstyle initial"
onclick="switchTab('config-code','json')"
>
<span class="tab-nav-text">json</span>
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<div
data-tab-item="toml"
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<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-toml" data-lang="toml"><span class="line"><span class="cl"><span class="nx">border</span> <span class="p">=</span> <span class="kc">true</span>
</span></span><span class="line"><span class="cl"><span class="nx">lazy</span> <span class="p">=</span> <span class="kc">true</span>
</span></span><span class="line"><span class="cl"><span class="nx">lightbox</span> <span class="p">=</span> <span class="kc">false</span>
</span></span><span class="line"><span class="cl"><span class="nx">shadow</span> <span class="p">=</span> <span class="kc">false</span></span></span></code></pre></div>
</div>
</div>
<div
data-tab-item="yaml"
class="tab-content tab-panel-style cstyle initial">
<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"><span class="line"><span class="cl"><span class="nt">border</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nt">lazy</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nt">lightbox</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nt">shadow</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span></span></span></code></pre></div>
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data-tab-item="json"
class="tab-content tab-panel-style cstyle initial">
<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-json" data-lang="json"><span class="line"><span class="cl"><span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;border&#34;</span><span class="p">:</span> <span class="kc">true</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;lazy&#34;</span><span class="p">:</span> <span class="kc">true</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;lightbox&#34;</span><span class="p">:</span> <span class="kc">false</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;shadow&#34;</span><span class="p">:</span> <span class="kc">false</span>
</span></span><span class="line"><span class="cl"><span class="p">}</span></span></span></code></pre></div>
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