docs: Add custom stylesheet for a modern responsive documentation style
diff --git a/docs/doxygen/folder-open.png b/docs/doxygen/folder-open.png
new file mode 100644
index 0000000..b67403d
--- /dev/null
+++ b/docs/doxygen/folder-open.png
Binary files differ
diff --git a/docs/doxygen/folder.png b/docs/doxygen/folder.png
new file mode 100644
index 0000000..901edc9
--- /dev/null
+++ b/docs/doxygen/folder.png
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diff --git a/docs/doxygen/text-x-generic.png b/docs/doxygen/text-x-generic.png
new file mode 100644
index 0000000..2d7f2d6
--- /dev/null
+++ b/docs/doxygen/text-x-generic.png
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diff --git a/doxygen.cfg.in b/doxygen.cfg.in
index 3f006a3..b92f9d2 100644
--- a/doxygen.cfg.in
+++ b/doxygen.cfg.in
@@ -1159,7 +1159,8 @@
# list). For an example see the documentation.
# This tag requires that the tag GENERATE_HTML is set to YES.
-HTML_EXTRA_STYLESHEET =
+HTML_EXTRA_STYLESHEET = \
+ docs/doxygen/custom.css
# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
# other source files which should be copied to the HTML output directory. Note
@@ -1169,7 +1170,10 @@
# files will be copied as-is; there are no commands or markers available.
# This tag requires that the tag GENERATE_HTML is set to YES.
-HTML_EXTRA_FILES =
+HTML_EXTRA_FILES = \
+ docs/doxygen/folder.png \
+ docs/doxygen/folder-open.png \
+ docs/doxygen/text-x-generic.png
# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
# will adjust the colors in the style sheet and background images according to
