Change colours and fix hovers with custom css

docs/source/_static/css/custom.css

+html[data-theme="light"] {
+    --pst-color-primary: rgb(4, 87, 13);
+    --pst-color-secondary: rgb(66, 96, 150);
+    --pst-color-border-tippy: rgb(0, 0, 0);
+    --pst-color-inline-code-links: rgb(4, 87, 13);
+    --pst-color-link-hover: var(--pst-color-secondary)
+}
+
+html[data-theme="dark"] {
+    --pst-color-primary: rgb(176, 217, 162);
+    --pst-color-secondary: rgb(125, 166, 244);
+    --pst-color-border-tippy: white;
+    --pst-color-inline-code-links: var(--pst-color-primary);
+    --pst-color-link-hover: var(--pst-color-secondary)
+}
+
+.tippy-box {
+    background-color:var(--pst-color-surface);
+    color:var(--pst-color-text-base);
+    border: 1px solid var(--pst-color-border-tippy);
+}

docs/source/conf.py

@@ -88,6 +88,7 @@ autoclass_content = "both"
 # a list of builtin themes.
 #
 html_theme = "sphinx_book_theme"
+html_title = "PYMF"
 
 html_theme_options = {
     "repository_url": "https://gitlab.kwant-project.org/qt/kwant-scf",
@@ -114,5 +115,5 @@ html_theme_options = {
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-# html_static_path = ["_static"]
-# html_css_files = ["local.css"]
+html_static_path = ["_static"]
+html_css_files = ["css/custom.css"]