Nicer rendering of tool calls

Signed-off-by: David Gageot <david.gageot@docker.com>

Author: dgageot

internal/tui/components/tool/tool.go

@@ -130,7 +130,7 @@ func (mv *toolModel) Render(width int) string {
 		// Join the lines back and apply muted style
 		trimmedContent := strings.Join(lines, "\n")
 		if trimmedContent != "" {
-			resultContent = "\n" + styles.MutedStyle.Render(trimmedContent)
+			resultContent = "\n" + styles.ToolCallResultStyle.Render(trimmedContent)
 		}
 	}
 

internal/tui/styles/styles.go

@@ -45,15 +45,27 @@ func darken(c color.Color, percent float64) color.Color {
 	}
 }
 
+func lighten(c color.Color, percent float64) color.Color {
+	r, g, b, a := c.RGBA()
+	factor := percent / 100.0
+	return color.RGBA{
+		R: uint8(min(255, float64(r>>8)+255*factor)),
+		G: uint8(min(255, float64(g>>8)+255*factor)),
+		B: uint8(min(255, float64(b>>8)+255*factor)),
+		A: uint8(a >> 8),
+	}
+}
+
 var (
 	BaseStyle = lipgloss.NewStyle().Foreground(primary)
 	AppStyle  = BaseStyle.Padding(0, 1, 0, 1)
 
 	// Text styles
-	HighlightStyle = BaseStyle.Foreground(highlight)
-	MutedStyle     = BaseStyle.Foreground(muted)
-	SubtleStyle    = BaseStyle.Foreground(subtle)
-	SecondaryStyle = BaseStyle.Foreground(secondary)
+	HighlightStyle      = BaseStyle.Foreground(highlight)
+	MutedStyle          = BaseStyle.Foreground(muted)
+	ToolCallResultStyle = BaseStyle.Foreground(muted).Margin(1, 0, 0, 0).Background(lighten(Background, 5)).Padding(1, 1)
+	SubtleStyle         = BaseStyle.Foreground(subtle)
+	SecondaryStyle      = BaseStyle.Foreground(secondary)
 
 	// Status styles
 	SuccessStyle    = BaseStyle.Foreground(success)