The user interface changes in appearance depending on the mode you’re in. You can switch to a different mode using the drop menu on the top right.
The reasoning behind the Beginner mode is to lower the learning curve for beginners and declutter the user interface for casual users. Complex features like modifier meshes are hidden, and only a basic subset of parameters is shown to the user.
In the Normal mode, more parameters are shown, and in the Expert mode, all the power features of QIDISlicer are accessible. To make the learning of parameters easier, we color-coded them