Create a rough industrial design sketch of an Xbox controller using dynamic lines and bold pen strokes. Focus on the ergonomic shape, highlighting the contours and button placements with energetic, flowing lines. Emphasize the precision of the analog sticks and triggers, capturing the tactile experience through varied line thickness. The overall sketch should convey a sense of motion and innovation, with a slightly abstract, unfinished quality to evoke the iterative process of design. Utilize stark contrasts and minimal shading to maintain the raw, conceptual feel【6†source】【7†source】.

lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, username, blurry