I have some vectors in my project but I can’t seem to color them in the color that I want.
You can´t “color-adjust” greyscales. You need either to autotrace or manually draw the grey parts (no big deal if you ask me) to adjust its colours.
If they are vectors you can change the shape fill in the inspector panel on the right when tha shape is selected.
If they are not follow ElenMs advice.
@CleoKeppens If they are not vectors you could also overlay another colored shape over the raster file and change the FILL style to something like SCREEN or OVERLAY etc.
screen-overlay.gvdesign (11.4 KB)
Here it is done
cleo.gvdesign (134.0 KB)
Looks good to me. Is that what you were expecting when you began?