Add custom theming

markdown_test.go

@@ -22,6 +22,10 @@ func TestCommentMarkdownDistinguishesQuoteAndReply(t *testing.T) {
 }
 
 func TestCommentMarkdownStylesInlineCode(t *testing.T) {
+	defer applyTheme("dark")
+	if err := applyTheme("dark"); err != nil {
+		t.Fatal(err)
+	}
 	rendered := strings.Join(renderCommentMarkdown(
 		"Use `list_comparison` for this value.", 60,
 	), "\n")
@@ -32,11 +36,30 @@ func TestCommentMarkdownStylesInlineCode(t *testing.T) {
 	if strings.Contains(plain, "Use  list_comparison  for") {
 		t.Fatalf("inline code added surrounding spaces: %q", plain)
 	}
-	if !strings.Contains(rendered, "48;5;236m") {
+	if !strings.Contains(rendered, "48;2;44;48;69m") {
 		t.Fatalf("inline code has no distinct background: %q", rendered)
 	}
 }
 
+func TestCommentMarkdownUsesActiveThemePalette(t *testing.T) {
+	defer applyTheme("dark")
+	if err := applyTheme("catppuccin-mocha"); err != nil {
+		t.Fatal(err)
+	}
+	rendered := strings.Join(renderCommentMarkdown(
+		"## Heading\n\nUse `value` and [link](https://example.com).\n\n```python\nif ready:\n    return 1\n```",
+		80,
+	), "\n")
+	for _, sequence := range []string{
+		"38;2;203;166;247", // Catppuccin mauve heading/link.
+		"38;2;166;227;161", // Catppuccin green inline code/string.
+	} {
+		if !strings.Contains(rendered, sequence) {
+			t.Fatalf("Markdown did not use active palette color %q:\n%q", sequence, rendered)
+		}
+	}
+}
+
 func TestWrappedQuoteKeepsRailOnEveryLine(t *testing.T) {
 	const width = 28
 	lines := renderCommentMarkdown(