Im on blender 3.5.0. For some reason Viewer node shows me position, normals, etc in black&white.
If i create a new file and check normals for cube or other objects - its shows in colors as expected.
Did i change some settings by mistake?
UPD: even if i create a new object and put some new geonodes - viewer shows anything in colors.
I found the error (bug? feature?):
If i create new or use already existing Normal/Position node, select it and press ctrl+shift+lmb it will create viewer node with appropriate (vector) input and show info in color.
If i press ctrl+shift+lmb on any node with mesh/curve output and when connect normal/position, the input will still be gray (float) and data will be shown in b&w.
I had a similar problem too. For me, all i had to do was click the viewer node, then in the node panel to the right, under properties change the value from “float” to “vector” or “color” and it shows the color. I hope this helps