Level 4+ Photopea

Photopea is an online image editing tool that's worth knowing about.

For instance you could right-click the image below to grab its URL and then open it in the Photopea
website by choosing File -> Open from URL. One interesting way to change the image once you
have it loaded is to choose Image -> Adjustments -> Color Balance. Click the checkmark for
Preserve luminosity and then play with the color sliders.

Of course if you already have a preferred graphics program, use that instead.

View attached image.