improvement and betterment line icons collection. progress, growth, development, advancement, enhancement, amelioration

vector icon line sign progress growth development advancement enhancement amelioration upgrade refinement augmentation elevation perfection improvisation evolution innovation modernization reform renovation reconstruction change transformation restoration revitalization rejuvenation regeneration empowerment revamp overhaul heightening magnification enrichment betterment finesse reformation bettering refurbishment progression melioration retouch modernisation embellishment perfectioning