Do not display search keyboard shortcut on home page and keep old ban…

…ner color (#3220)

* Do not display search keyboard shortcut on home page

* Set minimum version on pydata theme

* Use old color for banner since it goes better with the altair logo

doc/_static/custom.css

@@ -70,11 +70,23 @@ properly displayed on mobile devices and not restricted to 20% */
   vertical-align: text-bottom;
   margin-right: 3px;
 }
-  
+
 .full-width-plot {
   width: 100%;
 }
 
+/* This hides the Ctrl + K from the search box on the start page
+ * to make it less distracting on the home page.
+ * The shortcut still shows up when clicking the search box */
+.search-button-field > .search-button__kbd-shortcut {
+    display: none;
+}
+
+/* Use old light blue color for banner since it goes better with the Altair logo */
+.bd-header-announcement {
+    background-color: #daebf1 !important;
+}
+
 /* Configurations for the start page
 ------------------------------------ */
 .lead {
@@ -92,4 +104,4 @@ properly displayed on mobile devices and not restricted to 20% */
   /* Default is bolder which is less */
   font-weight: bold;
 }
-/* ---------------------------------- */
+/* ---------------------------------- */

pyproject.toml

@@ -81,7 +81,7 @@ doc = [
     "jinja2",
     "numpydoc",
     "pillow>=9,<10",
-    "pydata-sphinx-theme",
+    "pydata-sphinx-theme>=0.14.1",
     "geopandas",
     "myst-parser",
     "sphinx_copybutton",