When using my paint bucket tool recently it is filling the selected area in shades as opposed to a full colour. I have to click several times to get the full colour that I have selected. Didnt have this problem until a couple of days ago.
Turns out for some reason the opacity was set to 32. So my problem is solved. I also assume the tool reset would have worked as well. Thank you very much.
I think resets are a good idea if you can't figure out what is going on with a tool or if you or someone else forgot what box they checked.
Then also consider what layer your are working on and what the settings are there.