Place iOS App Icon assets here, as listed below:
- icon-20pt@2x.png   - 40 x 40 px
- icon-20pt@3x.png   - 60 x 60 px
- icon-29pt@2x.png   - 58 x 58 px
- icon-29pt@3x.png   - 87 x 87 px
- icon-38pt@2x.png   - 76 x 76 px
- icon-38pt@3x.png   - 114 x 114 px
- icon-40pt@2x.png   - 80 x 80 px
- icon-40pt@3x.png   - 120 x 120 px
- icon-60pt@2x.png   - 120 x 120 px
- icon-60pt@3x.png   - 180 x 180 px
- icon-64pt@2x.png   - 128 x 128 px
- icon-64pt@3x.png   - 192 x 192 px
- icon-68pt@2x.png   - 136 x 136 px
- icon-76pt@2x.png   - 152 x 152 px
- icon-83.5pt@2x.png - 167 x 167 px
- icon-1024pt.png    - 1024 x 1024 px