guidelines: illustration color tweaks
Followup from !111 (merged) and !112 (merged) updating the Guideslines page illustrations.
This drops the separate icon for navigation and reuses the one we have for browsing, since it was almost identical.
Followup from !111 (merged) and !112 (merged) updating the Guideslines page illustrations.
This drops the separate icon for navigation and reuses the one we have for browsing, since it was almost identical.