According to AI, which isn't guaranteed 100% accurate...
"PhotoPad does have a color picker dialog that shows RGB values, but it does not appear to have a Photoshop-style always-on “Info” panel that continuously displays sampled pixel values while you move around the image. NCH’s help says the Color Picker dialog includes RGB controls, a Hex Value, and an eyedropper for sampling color from anywhere on the desktop.
What to use in PhotoPad
Open the Color Picker Dialog when you choose a color for a tool such as text, fill, or other color-based edits. In that dialog, you can view and adjust the red, green, and blue channels directly, and the selected color is shown beside those controls.
Important limitation
From the documentation I found, PhotoPad’s help does not mention a dedicated floating panel that continuously reports live RGB under the cursor like Photoshop’s Info window. The closest built-in option is the eyedropper in the color picker, which lets you sample a color and then read its RGB values in the dialog.
For laser engraving
If you need grayscale values for engraving, the practical workflow is usually:
sample the color with the eyedropper,
note the RGB values,
convert or test the luminance/grayscale value you need for your engraver.
PhotoPad’s help also includes Grayscale as a filter, but I did not find a built-in “Info” readout for exact per-pixel values in the main viewer.
If you want, query here for a quick workflow to get engraving-ready grayscale values from RGB using PhotoPad or a simple formula.""