Pen(ペン)

Pen.size ( ペンの太さ )

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import { Typescratcher as Ts } from "@tscratch3/typescratcher";
import type { Sprite } from "@tscratch3/typescratcher";

const cat = new Ts.Sprite( 'cat' );

const threadA = async function* ( this : Sprite ) {
    this.Pen.size.thickness = 1; // 太さを 1 にする
} 
const threadB = async function* ( this : Sprite ) {
    this.Pen.size.thickness += 1; // 太さを 1 ずつ変える
}

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