This might be suited for the photoshop forum but im not sure.. My question is.. what exactly is opacity in photoshop? I know its supposed to mean how translucent the color is.. but im confused about something. If I take a color and paint it with 50% opacity.. I can color pick that stroke and then turn it too 100% opacity and I have an entirely new color on the color palette. So basically every opacity level of every color is available on the grid where you choose a color. So in essence.. does changing the opacity change the value of the color? does it change the color itself? Something tells me its actually changing the value of the color.. since you can see that there is a location on the color picker where a stroke of low opacity is located. That sounded really confusing.. I hope you guys understand. Basically my question is.. is the opacity slider actually affecting the value of the color? if not... whatss goin on?