ItemInfoSecondaryIcons.sti holds 5 new icons.
ID 31 - item not damageable
ID 32 - item made of metal
ID 33 - items sinks
ID 34 - item two-handed
ID 35 - item blocks iron sights
git-svn-id: https://ja2svn.mooo.com/source/ja2_v1.13_data@1782 4f8fa57e-7814-0410-bad4-adc449f26b7c