fix: Improve code highlighting in dark mode

closes #5021

shared/styles/theme.ts

@@ -74,6 +74,7 @@ const buildBaseTheme = (input: Partial<Colors>) => {
     codeNumber: "#d73a49",
     codeProperty: "#c08b30",
     codeTag: "#3d8fd1",
+    codeClassName: "#3d8fd1",
     codeString: "#032f62",
     codeSelector: "#6679cc",
     codeAttr: "#c76b29",
@@ -226,7 +227,13 @@ export const buildDarkTheme = (input: Partial<Colors>): DefaultTheme => {
     code: colors.almostWhite,
     codeBackground: colors.black75,
     codeBorder: colors.white10,
-    codeString: "#3d8fd1",
+    codeTag: "#b5cea8",
+    codeString: "#ce9178",
+    codeKeyword: "#569CD6",
+    codeFunction: "#dcdcaa",
+    codeClassName: "#4ec9b0",
+    codeImportant: "#569CD6",
+    codeAttr: "#9cdcfe",
     embedBorder: colors.black50,
     horizontalRule: lighten(0.1, colors.almostBlack),
     noticeInfoText: colors.white,