Merge pull request #1425 from krissetto/change-thinking-dropdown-symbol

Change triangle to [+] and [-] on thinking dropdown toggle

Author: dgageot

pkg/tui/components/reasoningblock/reasoningblock.go

@@ -402,13 +402,13 @@ func (m *Model) hasExtraContent() bool {
 func (m *Model) renderHeader(expanded bool) string {
 	badge := styles.ThinkingBadgeStyle.Render("Thinking")
 
-	// Use filled triangles indicating action: ▲ collapse (when expanded), ▼ expand (when collapsed)
+	// Use [+] to expand and [-] to collapse
 	var indicator string
 	switch {
 	case expanded:
-		indicator = styles.MutedStyle.Render(" ▲")
+		indicator = styles.MutedStyle.Bold(true).Render(" [-]")
 	case m.hasExtraContent():
-		indicator = styles.MutedStyle.Render(" ▼")
+		indicator = styles.MutedStyle.Bold(true).Render(" [+]")
 	}
 
 	// Add tool count indicator when collapsed

pkg/tui/components/reasoningblock/reasoningblock_test.go

@@ -59,8 +59,8 @@ func TestReasoningBlockCollapsedWithLongContent(t *testing.T) {
 	view := block.View()
 	stripped := ansi.Strip(view)
 
-	// Should contain "Thinking" header with expand indicator (▼)
-	assert.Contains(t, stripped, "Thinking ▼")
+	// Should contain "Thinking" header with expand indicator ([+])
+	assert.Contains(t, stripped, "Thinking [+]")
 }
 
 func TestReasoningBlockExpanded(t *testing.T) {
@@ -80,8 +80,8 @@ func TestReasoningBlockExpanded(t *testing.T) {
 	view := block.View()
 	stripped := ansi.Strip(view)
 
-	// Should contain "Thinking" header with collapse indicator (▲)
-	assert.Contains(t, stripped, "Thinking ▲")
+	// Should contain "Thinking" header with collapse indicator ([-])
+	assert.Contains(t, stripped, "Thinking [-]")
 	// Should show all lines
 	assert.Contains(t, stripped, "Line 1")
 	assert.Contains(t, stripped, "Line 6")