How to use
1. Type /powa, to open the effect browser
2. Click on the button "New" to create a new effect
3. On the effect editor, you can choose the texture to apply to the effect, the position, the size, the symmetry, be creative

4. Below, select the activator of the effect (like a buff, debuff, etc...)
5. Enter the name of the buff, debuff... just below (or a part of the buff, like "clear" for activation with the buff "clear cast"). Don't forget to read the tooltips for more help on ways to enter the names
6. It's ready ! Close all windows, when you gain the buff/debuff, the effect appears