solved it: anti-alias was turned on for the lasso tool! Here I was looking at the wrong solution. Thank you for your time, Gabe and I apologize for any inconveniences.
Alternatively, the Select > Select Sampled Color... option when clicked on will give a default selection around most of the items of all colours, however when you then click on a colour on the image it'll sample that colour and select items that are that colour and the tolerance control allows you to expand that range a bit if needs be. You can also keep clicking around in the image area whilst the dialogue is open to select slightly different colours etc.
ArthurFfox got a reaction from HVDB Photography in Paint Bucket leaving ugly pixelated border lines