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: 677 B After Width: | Height: | Size: 551 B |
Before Width: | Height: | Size: 704 B After Width: | Height: | Size: 575 B |
Before Width: | Height: | Size: 681 B After Width: | Height: | Size: 587 B |
Before Width: | Height: | Size: 771 B After Width: | Height: | Size: 608 B |