diff --git a/README.md b/README.md
index b9ced73..967c151 100644
--- a/README.md
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This is a work-in-progress technology preview. Graphics are mostly placeholders at the moment.
[PLAY](http://thunderk.github.io/spacetac/) directly in your browser, no dependency required.
+
+## Attributes
+
+* **Initiative** - Ability to play before other ships in the play order
+* **Hull** - Amout of damage that a ship can receive before having to shut down all its systems
+* **Shield** - Amount of damage that the shield equipments may absorb to protect the Hull
+* **Power** - Available action points (some actions require more power than others)
+* **Power recovery** - Power generated at the end of a ship's turn
+
+## Capabilities
+
+* **Materials** - Usage of physical materials such as bullets, shells...
+* **Electronics** - Components of computers and communication
+* **Energy** - Raw energy manipulation
+* **Human** - Management of a human team and resources
+* **Gravity** - Interaction with gravitational forces
+* **Time** - Manipulation of time
diff --git a/graphics/ui/battle.svg b/graphics/ui/battle.svg
index 6d5c571..dba58c8 100644
--- a/graphics/ui/battle.svg
+++ b/graphics/ui/battle.svg
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sodipodi:docname="battle.svg">
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style="display:inline">
+ inkscape:export-ydpi="90"
+ inkscape:tile-cx="-81.992642"
+ inkscape:tile-cy="191.38379"
+ inkscape:tile-w="117.34316"
+ inkscape:tile-h="92.60053"
+ inkscape:tile-x0="-140.66422"
+ inkscape:tile-y0="145.08353">
@@ -301,6 +414,87 @@
id="tspan4608"
sodipodi:role="line">2
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+ inkscape:export-ydpi="90"
+ inkscape:tile-cx="960"
+ inkscape:tile-cy="65.884904"
+ inkscape:tile-w="1920"
+ inkscape:tile-h="131.76981"
+ inkscape:tile-x0="0"
+ inkscape:tile-y0="6.3635254e-07" />
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id="layer2"
inkscape:label="Ship detail"
style="display:inline">
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- Juggernaut
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+ Hull
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+ Shield
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+ Power
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+ Material
+ Energy
+ Time
+ Electronics
+ Human
+ Gravity
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+ Juggernaut
+ 74
+ 32
+ 8
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+ 6
+ 3
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+ 7
+ 1
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+ Rotary gun
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- Rotary gun
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+ Energy recovery -15% (2 turns)
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+ id="text4598-3"
+ sodipodi:linespacing="125%">Power recovery -1 (2 turns)
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+ inkscape:label="Action detail"
+ style="display:inline">
Fire 1 missile
Cost : 20% energy
+ style="font-size:25px;fill:#ffdd4b;fill-opacity:1"
+ id="tspan4431">Cost : 20% power