Simple

import * as PIXI from 'pixi.js';
import '@pixi/graphics-extras';

const app = new PIXI.Application({ antialias: true, resizeTo: window });

document.body.appendChild(app.view);

const graphics = new PIXI.Graphics();

// Rectangle
graphics.beginFill(0xDE3249);
graphics.drawRect(50, 50, 100, 100);
graphics.endFill();

// Rectangle + line style 1
graphics.lineStyle(2, 0xFEEB77, 1);
graphics.beginFill(0x650A5A);
graphics.drawRect(200, 50, 100, 100);
graphics.endFill();

// Rectangle + line style 2
graphics.lineStyle(10, 0xFFBD01, 1);
graphics.beginFill(0xC34288);
graphics.drawRect(350, 50, 100, 100);
graphics.endFill();

// Rectangle 2
graphics.lineStyle(2, 0xFFFFFF, 1);
graphics.beginFill(0xAA4F08);
graphics.drawRect(530, 50, 140, 100);
graphics.endFill();

// Circle
graphics.lineStyle(0); // draw a circle, set the lineStyle to zero so the circle doesn't have an outline
graphics.beginFill(0xDE3249, 1);
graphics.drawCircle(100, 250, 50);
graphics.endFill();

// Circle + line style 1
graphics.lineStyle(2, 0xFEEB77, 1);
graphics.beginFill(0x650A5A, 1);
graphics.drawCircle(250, 250, 50);
graphics.endFill();

// Circle + line style 2
graphics.lineStyle(10, 0xFFBD01, 1);
graphics.beginFill(0xC34288, 1);
graphics.drawCircle(400, 250, 50);
graphics.endFill();

// Ellipse + line style 2
graphics.lineStyle(2, 0xFFFFFF, 1);
graphics.beginFill(0xAA4F08, 1);
graphics.drawEllipse(600, 250, 80, 50);
graphics.endFill();

// draw a shape
graphics.beginFill(0xFF3300);
graphics.lineStyle(4, 0xffd900, 1);
graphics.moveTo(50, 350);
graphics.lineTo(250, 350);
graphics.lineTo(100, 400);
graphics.lineTo(50, 350);
graphics.closePath();
graphics.endFill();

// draw a rounded rectangle
graphics.lineStyle(2, 0xFF00FF, 1);
graphics.beginFill(0x650A5A, 0.25);
graphics.drawRoundedRect(50, 440, 100, 100, 16);
graphics.endFill();

// draw star
graphics.lineStyle(2, 0xFFFFFF);
graphics.beginFill(0x35CC5A, 1);
graphics.drawStar(360, 370, 5, 50);
graphics.endFill();

// draw star 2
graphics.lineStyle(2, 0xFFFFFF);
graphics.beginFill(0xFFCC5A, 1);
graphics.drawStar(280, 510, 7, 50);
graphics.endFill();

// draw star 3
graphics.lineStyle(4, 0xFFFFFF);
graphics.beginFill(0x55335A, 1);
graphics.drawStar(470, 450, 4, 50);
graphics.endFill();

// draw polygon
const path = [600, 370, 700, 460, 780, 420, 730, 570, 590, 520];

graphics.lineStyle(0);
graphics.beginFill(0x3500FA, 1);
graphics.drawPolygon(path);
graphics.endFill();

app.stage.addChild(graphics);