This saved canvas tool draws a stylized crossing scene. Its lens choices select three drawing scales: one point two five, one, and zero point eight. The walker height is one hundred seventy five times that scale. The three resulting heights are two hundred eighteen point seven five, one hundred seventy five, and one hundred forty pixels. The equal scale bars show exactly those lengths. This is a piecewise drawing rule, not a full optical camera simulation. Historical scene details and lens claims are saved assumptions, not independently verified photographic facts. The score starts at one hundred and subtracts hand selected penalties. A non fifty millimeter lens removes eighteen points, giving eighty two. Removing the barefoot prop subtracts another fifteen, giving sixty seven. The score is clamped between twelve and one hundred. These bars share four pixels per score point. Dragging a walker changes the drawing position, but the positions are absent from this score formula. A high score therefore means agreement with selected source rules, not photographic quality or a probability of historical accuracy. Continuous stride sliders also meet discrete rules. John, Ringo and George lose points only below zero point five, while Paul loses points only above zero point five. Exactly zero point five avoids all of those stride penalties, although the displayed Paul direction uses a different strict comparison. Camera height has a dead zone: within one unit of eight point five there is no height penalty; beyond it the score loses eight. Read the boundary comparisons, preserve native listeners, and verify actual image and call sheet exports. Saved local storage can also change the starting state. This explainer describes the software, not verified film production or historical reconstruction.