ls src/assets/images
paladin.jpg

ls src
app  assets  environments  favicon.ico  index.html  main.ts  polyfills.ts  styles.css  test.ts

"assets": [
              "src/assets",
              "src/favicon.ico"
            ],
            "styles": [
              "src/styles.css"
            ],
            "scripts": []

<link rel="icon" type="image/x-icon" href="favicon.ico">

<img width="300" alt="Angular Logo" src="assets/images/paladin.jpg">

ng serve
ng build

<img width="300" alt="Angular Logo" src="./assets/images/paladin.jpg">
<img width="300" alt="Angular Logo" src="assets/images/paladin.jpg">
<img width="300" alt="Angular Logo" src="../assets/images/paladin.jpg">
<img width="300" alt="Angular Logo" [src]="assets/images/paladin.jpg">
<img width="300" alt="Angular Logo" [src]="'assets/images/paladin.jpg'">

ng new myTestApp
# => routing y/N doesn't matter
# => css option
ng serve --open