The phrase "bold strokes" means taking confident and decisive actions without hesitating or being afraid. It refers to doing things in a strong and daring manner. Full definition
Each character is drawn in bold strokes, confidently and effectively. (japantimes.co.jp)
Why didn't those broad, bold strokes reduce the achievement gap? (educationnext.org)
I give you a glimpse of my world, where bold strokes and abstract impressions, created by the emotions of color sets the stage for a journey across the canvas. (sandyspain.com)