The background of the image frame will change color to match that color—and so will the white areas of the photo because InDesign treats white in grayscale images as transparent.

With an emphasis on color mixing and brushwork, each week’s lesson will be inspired by works in the Museum’s collections. Transitioning from grayscale to color can be a challenge for artists. In this ...

Click "Grayscale" under the "Built-in" heading. After a few seconds, the slides change color to black and white, and images appear in grayscale.

Apply Color Filters by enabling Invert, Grayscale Inverted, Deuteranopia, Protanopia, Tritanopia filters on Windows 11/10. This post explains how to use the color filters.