Sprites                  / Fallback / OK or still missing

Terrains:
Grassland                /            / OK
Alien Forest             /            / OK 
Radiating Rocks          /            / OK
Hills                    /            / OK
Thick Mountains          /            / OK
Ocean                    /            / OK
Boiling Ocean            /            / OK

Resources:
Resources                /            / OK
Alien Mine               /            / OK
Huge Plant               /            / OK
Thermal Vent             /            / OK
Fish                     /            / OK
Glowing Rocks            /            / OK

Specials:
Road                     / Road       / OK
Irrigation               / Irrigation / OK
Railroad                 / Railroad   / OK
Mine                     / Mine       / OK
Pollution                / Pollution  / OK
Hut                      / Hut        / OK
River                    / River      / OK
Farmland                 / Farmland   / OK
Fallout                  / Fallout    / OK

Bases:
Tower                    /
Force Fortress           /
Burrow Tube              /
Antigrav Base            /

Units:
Settlers                 / settlers       / OK
Native Settlers          / worker         / OK
Engineer                 / engineers      / OK
Native Engineer          / archers        / OK
Water Engineer           / legion         / OK
Star Marines             / marines        / OK
Cyborgs                  / pikemen        / OK
Tank                     / armor          / OK
War Monster              / archers        / OK
Crusher                  / horsemen       / OK
Cyber Alien              / musketeers     / OK
Rex                      / knights        / OK
Paradropper              / paratroopers   / OK
Turtle Defender          / mech_inf       / OK
Earth Sub                / submarine      / OK
Hunter                   / frigate        / OK
Light Saucer             / fighter        / OK
Bomb Saucer              / bomber         / OK
Spitter                  / catapult       / OK
Heavy Spitter            / cannon         / OK
Explorer                 / explorer       / OK
Scout Animal             / warriors       / OK
Ship                     / trireme        / OK
Destroyer                / destroyer      / OK
Battle Unit              / battleship     / OK
Amphibious Transport     / ironclad       / OK
Freight                  / freight        / OK
Caravan                  / caravan        / OK
Stealth Spy              / diplomat       / OK
Teleporting Missile      / cruise_missile / OK
Antiburrow Missile       / nuclear        / OK

Government icons:
Anarchy                  /
Despotism                /
Communism                /
Democracy                /
Dual Communism           /
Dual Democracy           /

Building icons:
Antigrav Port            /
Archive                  /
Basic Infrastructure     /
Bunker                   /
Cyberpart Factory        /
Filter                   /
Force Walls              /
Headquarters             /
Hospital                 /
Information Distillery   /
Mood Center              /
Training Facility        /
Transportation           /
Radar Tower              /
Radiation Resistor       /
Research Nest            /
Secret Police            /
Skyscraper               /
Virtual Reality Theatre  /
Space Component          /
Space Module             /
Space Structural         /

Wonder icons:
Earth Monument           /
Great Tunnel             /
Antigrav Control Center  /
Oceanic Downtown         /
Monument of Co-operation /
Protector                /

Technology icons:
Alien Rights             /
Alien Taming             /
Alien Training           /
Amphibious Tactics       /
Antigravity              /
Burrowing                /
Brain Development        /
Brute Force              /
City Defense             /
Commercial Antigravity   /
Communication            /
Composites               /
Crust Defense            /
Cyber Aliens             /
Cybermodules             /
Cybernetics              /
Data Storage             /
Deep Pumping             /
Deneb Radar              /
Dual Government          /
Escape                   /
Faction Government       /
Faction Politics         /
Food Regeneration        /
Force Channeling         /
Gravity Manipulation     /
Global Knowledge         /
High-Tech Filtering      /
Happiness                /
Low-Level Orbit          /
Manufacturing            /
Martial Law              /
Mental Powers            /
Modified Spitter         /
Mood Manipulation        /
Naval Superiority        /
New Frontier             /
Ocean Cities             /
Paradrop                 /
Personal Contact         /
Protein Modifications    /
Radiation Resistance     /
Regeneration             /
Research Methods         /
Smart Aliens             /
Soul                     /
Specialist Training      /
Spitter Control          /
Stealth Module           /
Strong Force             /
Strong Resistance        /
Supermodule              /
Synthetic Food           /
Teleportation            /
Thermal Module           /
Travel                   /
Underground Habitat      /
Unified Theory           /
Virtual Entertainment    /
Virtual Reality Training /
War Monsters             /
Water Flow               /

Citizens:
Content                  / Content
Happy                    / Happy
Unhappy                  / Unhappy
Angry                    / Angry
Elvis                    / Elvis
Scientist                / Scientist
Taxman                   / Taxman

City styles:
Human Land City          / classical  / OK
Dual Land City           / modern     / OK
Ocean City               / modern     / OK

Misc:
Fog                      /            / OK
Dither                   /            / OK
Attention                /            / temp
Mask                     /            / OK
Nonnative                /            / OK