This massive image modification removes colour profile information and adds an alpha channel. The first saves a little space, the second costs a little space. First is needed since SDL on OSX applies colour profile info which, while cool, is useless so long as the other theme colours are un-adjusted. Second is since we are apparently requiring full 32 bit surfaces now.

21 20 38
128 0 0
$54 $5C $9D
$34 $3C $7D
$80
city.ogg
45
4
plant1
200 344 54 2 1 0 0 160 215
plant2
32 165 65 2 1 0 0 163 140
plant3
45 0 14 1 1 23 9 54 57
plant4
99 8 1 38 1 42 7 42 103
0
1500
0 0 0 2000