Use base16 framework for palettes

static/css/palettes/base16-dark.css

@@ -0,0 +1,22 @@
+/* base16 default dark
+ * https://github.com/chriskempson/base16-default-schemes
+ */
+
+:root {
+	--base00: #181818;
+	--base01: #282828;
+	--base02: #383838;
+	--base03: #585858;
+	--base04: #b8b8b8;
+	--base05: #d8d8d8;
+	--base06: #e8e8e8;
+	--base07: #f8f8f8;
+	--base08: #ab4642;
+	--base09: #dc9656;
+	--base0A: #f7ca88;
+	--base0B: #a1b56c;
+	--base0C: #86c1b9;
+	--base0D: #7cafc2;
+	--base0E: #ba8baf;
+	--base0F: #a16946;
+}

static/css/palettes/base16-light.css

@@ -0,0 +1,22 @@
+/* base16 default light
+ * https://github.com/chriskempson/base16-default-schemes
+ */
+
+:root {
+	--base00: #f8f8f8;
+	--base01: #e8e8e8;
+	--base02: #d8d8d8;
+	--base03: #b8b8b8;
+	--base04: #585858;
+	--base05: #383838;
+	--base06: #282828;
+	--base07: #181818;
+	--base08: #ab4642;
+	--base09: #dc9656;
+	--base0A: #f7ca88;
+	--base0B: #a1b56c;
+	--base0C: #86c1b9;
+	--base0D: #7cafc2;
+	--base0E: #ba8baf;
+	--base0F: #a16946;
+}

static/css/palettes/gruvbox-dark.css

@@ -0,0 +1,23 @@
+/* gruvbox dark
+ * https://github.com/morhetz/gruvbox
+ * base16: https://github.com/dawikur/base16-gruvbox-scheme
+ */
+
+:root {
+	--base00: #282828;
+	--base01: #3c3836;
+	--base02: #504945;
+	--base03: #665c54;
+	--base04: #bdae93;
+	--base05: #d5c4a1;
+	--base06: #ebdbb2;
+	--base07: #fbf1c7;
+	--base08: #fb4934;
+	--base09: #fe8019;
+	--base0A: #fabd2f;
+	--base0B: #b8bb26;
+	--base0C: #8ec07c;
+	--base0D: #83a598;
+	--base0E: #d3869b;
+	--base0F: #d65d0e;
+}

static/css/palettes/gruvbox-light.css

@@ -0,0 +1,23 @@
+/* gruvbox light
+ * https://github.com/morhetz/gruvbox
+ * base16: https://github.com/dawikur/base16-gruvbox-scheme
+ */
+
+:root {
+	--base00: #fbf1c7;
+	--base01: #ebdbb2;
+	--base02: #d5c4a1;
+	--base03: #bdae93;
+	--base04: #665c54;
+	--base05: #504945;
+	--base06: #3c3836;
+	--base07: #282828;
+	--base08: #9d0006;
+	--base09: #af3a03;
+	--base0A: #b57614;
+	--base0B: #79740e;
+	--base0C: #427b58;
+	--base0D: #076678;
+	--base0E: #8f3f71;
+	--base0F: #d65d0e;
+}