use pngcrush
Before Width: | Height: | Size: 86 KiB After Width: | Height: | Size: 71 KiB |
Before Width: | Height: | Size: 105 KiB After Width: | Height: | Size: 83 KiB |
Before Width: | Height: | Size: 166 KiB After Width: | Height: | Size: 164 KiB |
Before Width: | Height: | Size: 223 B After Width: | Height: | Size: 231 B |
Before Width: | Height: | Size: 360 KiB After Width: | Height: | Size: 266 KiB |
Before Width: | Height: | Size: 90 KiB After Width: | Height: | Size: 67 KiB |
Before Width: | Height: | Size: 251 B After Width: | Height: | Size: 248 B |