Optimize textures more aggressively.
Use optipng with default options. This converted a number of textures from RGB to indexed colors, but reduces file sizes substantially.
Before Width: | Height: | Size: 567 B After Width: | Height: | Size: 481 B |
Before Width: | Height: | Size: 574 B After Width: | Height: | Size: 488 B |
Before Width: | Height: | Size: 576 B After Width: | Height: | Size: 501 B |
Before Width: | Height: | Size: 570 B After Width: | Height: | Size: 482 B |
Before Width: | Height: | Size: 563 B After Width: | Height: | Size: 482 B |
Before Width: | Height: | Size: 567 B After Width: | Height: | Size: 486 B |