Reverts a decision from commit 10b7cd63f5
in order to both make the Classic theme backportable to 1.12 and
eliminate an unnecessary complication for UMC.
At some point in the future, the Default theme will replace Classic when
the rumored UnitBox theme becomes the default, so I'd say naming its
directories "classic" makes sense, while the current Classic theme is
the "legacy" classic.
If we hadn't gotten stuck with Default using "classic" dirs in 1.12
there would be no need for any of this irritating nonsense.
This reverts commit 5d36e382c7.
It's been found to cause all kinds of terrain glitches on Windows and
Linux. Please do not try experimental image compression alternatives
without discussing and reviewing first.
Overall statistics (only for files with a smaller recompressed size):
Original size: 14370 KiB on 172 files
Optimized size: 12855 KiB
Total saving: 1514 KiB = 10% decrease
Overall statistics (only for files with a smaller recompressed size):
Original size: 16720 KiB on 404 files
Optimized size: 15237 KiB
Total saving: 1482 KiB = 8% decrease
Overall statistics (only for files with a smaller recompressed size):
Original size: 276 KiB on 14 files
Optimized size: 226 KiB
Total saving: 50 KiB = 18% decrease
Overall statistics (only for files with a smaller recompressed size):
Original size: 4442 KiB on 35 files
Optimized size: 4211 KiB
Total saving: 230 KiB = 5% decrease
Overall statistics (only for files with a smaller recompressed size):
Original size: 9070 KiB on 449 files
Optimized size: 8184 KiB
Total saving: 885 KiB = 9% decrease
Overall statistics (only for files with a smaller recompressed size):
Original size: 695 KiB on 69 files
Optimized size: 674 KiB
Total saving: 20 KiB = 2% decrease
Overall statistics (only for files with a smaller recompressed size):
Original size: 485 KiB on 277 files
Optimized size: 447 KiB
Total saving: 37 KiB = 7% decrease
(not commiting any files that were reported as broken, there are many!)
Original size: 130846 KiB on 10530 files
Optimized size: 127520 KiB
Total saving: 3325 KiB = 2% decrease
NOTE: Extremely many files received (smaller) changes but due to the
extremely large amount of changes I am not 100% sure that this
conversion is correct. This is the output of
utils/png_format_check.sh:
RGBA: 10247 RGB: 10 Gray+A: 256 Gray: 0 Index+A: 0 Index: 0 Other: 0
Overall statistics (only for files with a smaller recompressed size):
Original size: 128949 KiB on 9778 files
Optimized size: 125813 KiB
Total saving: 3135 KiB = 2% decrease
