[1]-Lets open a new file in your favourite photoshop software version.Then choose a custom size you may choose any size depending on the size of sticker you want, I will pick Height & width 500�500 pixels and Resolution 72 using Mode RGB Color.
Let's start with a new document with the following size: 960�900 pixels. In the last 3 days i have received over 10 common questions from grafpedia members with the same issue: How do i find the colors when i am creating a web layout.