Mobile Sketch Editor Doodle Screenshot

Goal: Create a clean screenshot-style image of a mobile sketch editor interface showing a rough black doodle on a white canvas, as if drawn with a thick marker in a simple drawing app.
Canvas: Square 1:1 image, bright white background, rounded app-window corners, very minimal light-gray UI chrome.
Layout: At the top left place one gray X close icon. At the top center place a floating rounded toolbar containing exactly 5 tool icons: cursor arrow, squiggle pen tool highlighted with a pale gray circular background, capital T text tool, overlapping shapes icon, and eraser icon. At the top right place exactly 2 undo/redo curved-arrow icons in light gray. On the left side place one vertical light-gray slider with a round knob near the lower third and a small multicolor sparkle button near the center-left. On the right side of the canvas place one small black circular cursor dot with a thin white ring. Along the bottom place exactly 14 circular color controls: rainbow color wheel, selected black swatch with blue outline and white ring, gray, brown, red, orange, yellow-orange, green, teal, cyan, blue, indigo, purple, and pink. Bottom right has one black circular confirmation button with a white checkmark.
Drawing content: Use thick, uneven, hand-drawn black lines with rounded ends, like a finger sketch. The drawing is divided by one long horizontal black line across the lower middle of the canvas. Above the line, draw exactly 2 large stick-figure-like doodles: on the left a tall narrow figure with a triangular/hat-like head and long vertical body; on the right a stick person with an oval head, vertical torso, one bent arm extending left, and two angled legs. Below the line, draw exactly 3 smaller stick figures spaced left, center, and right; each has a simple head shape, vertical body, short horizontal arms, and two angled legs. The left lower figure has a wide angular head, the center lower figure has a small oval head, and the right lower figure has a tilted oval head.
Visual style: Minimal iOS-like sketch interface, flat vector UI, no shadows except very subtle toolbar softness, white background, black marker strokes as the dominant element. Keep all doodles intentionally crude and childlike, not polished.
Constraints: No readable text in the canvas, no watermark, no photorealism, preserve the exact counts of UI icons, color swatches, and stick figures.