add link to color finder

ggplot2-color.html

@@ -196,6 +196,10 @@ <h1>Dealing with colors in ggplot2</h1>
           its <code>fill</code> and <code>color</code> arguments. It is
           important to understand the diffence between both.
         </p>
+        <p>
+          The <code>fill</code> property changes the color inside the shape,
+          while the <code>color</code> property modifies its border color.
+        </p>
         <p>
           Note that <code>color</code> and <code>colour</code> always have the
           same effect.
@@ -381,9 +385,9 @@ <h1>Dealing with colors in ggplot2</h1>
             <p>
               <code>ggplot2</code> allows to automatically assign a marker color
               to a variable. Basically, you just have to specify the variable in
-              the <code>aes()</code> part of the call. Moreover, a legend comes
-              for free.
+              the <code>aes()</code> part of the call.
             </p>
+            <p>Moreover, a legend will come for free! 🎉</p>
             <pre
               class="bg-light"
               style="padding-left: 10px; margin-top: 0px"
@@ -878,6 +882,61 @@ <h1>Dealing with colors in ggplot2</h1>
       showPalette("colorPalette_brewerPuOr");
     </script>
 
+    <section
+      class="bg"
+      id="oneCol"
+      style="padding-top: 60px; padding-bottom: 60px; margin-top: 0px"
+    >
+      <div class="container">
+        <div class="mySeryTitle">
+          <code>Paletteer</code>: The Definitive Catalog of R Color Palettes
+        </div>
+        <hr />
+        <p>
+          <a href="https://r-graph-gallery.com/package/paletteer.html"
+            >Paletteer</a
+          >
+          is an R package that provides over
+          <b>2500+ ready-to-use color palettes</b>
+          for your charts.
+        </p>
+        <p>
+          Using <code>paletteer</code> is simple. It comes with a few functions
+          like <code>scale_fill_paletteer_d</code> which allows to utilize any
+          of the 2500+ palettes in your plot. I've written a comprehensive
+          <a href="https://r-graph-gallery.com/package/paletteer.html"
+            >introduction to Paletteer here</a
+          >.
+        </p>
+        <a
+          href="https://r-graph-gallery.com/package/paletteer.html"
+          class="btn btn-secondary btn-sm"
+          >paletter introduction</a
+        >
+        <br /><br />
+        <p>
+          Additionally, I've developed a lightweight
+          <a href="https://r-graph-gallery.com/color-palette-finder"
+            >application</a
+          >
+          that allows you to <b>explore</b> these 2500+ palettes quickly. It
+          includes a variety of features that I'm sure you'll enjoy.
+        </p>
+        <a
+          href="https://r-graph-gallery.com/color-palette-finder"
+          class="btn btn-secondary btn-sm"
+          >Color Palette Finder</a
+        >
+        <br />
+        <center>
+          <a href="https://r-graph-gallery.com/color-palette-finder"
+            ><img src="img/other/colorPaletteFinder.gif"
+          /></a>
+        </center>
+        <br />
+      </div>
+    </section>
+
     <section class="bg" id="portfolio" style="padding-top: 80px">
       <div class="container">
         <div class="mySeryTitle">Quick notes</div>