Shield Vfx pack update

Hi there! I just released an update to the package. Now you will find the spritesheets already scaled in 3 different sizes for your convenience, as well as minor fixes to the spritesheets previously released.

Each variant of he Shield Vfx is now available in 3 colors (black and white, green, blue) and in 3 sizes:

• Big 512x512
• Medium 256x256
• Small 128x128