1 files changed, 29 insertions, 0 deletions
diff --git a/reference/js/setTheme.js b/reference/js/setTheme.js
new file mode 100644
index 0000000..b90f629
--- /dev/null
+++ b/reference/js/setTheme.js
@@ -0,0 +1,29 @@
+function setTheme(theme) {
+	localStorage.setItem("theme",theme);
+	var   root      = document.querySelector(":root");
+	var   rootstyle = getComputedStyle(root);
+	const black     = rootstyle.getPropertyValue("--black");
+	const darkgrey  = rootstyle.getPropertyValue("--darkgrey");
+	const lightgrey = rootstyle.getPropertyValue("--lightgrey");
+	const white     = rootstyle.getPropertyValue("--white");
+	var   backgroundColour0;
+	var   backgroundColour1;
+	var   foregroundColour;
+	if (theme === "dark") {
+		backgroundColour0 = black;
+		backgroundColour1 = darkgrey;
+		foregroundColour  = white;
+	}
+	else if (theme === "light") {
+		backgroundColour0 = lightgrey;
+		backgroundColour1 = white;
+		foregroundColour  = black;
+	}
+	else {
+		setTheme("dark");
+		return;
+	}
+	root.style.setProperty("--backgroundColour0",backgroundColour0);
+	root.style.setProperty("--backgroundColour1",backgroundColour1);
+	root.style.setProperty("--foregroundColour",foregroundColour);
+}