Market could display effects of compounds/boosts
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https://screeps.com/forum/topic/2322/ptr-changelog-2018-08-20-tunnels
To make the game explain itself to newer players a bit better and also to remind forgetful older players, the market browser might benefit from describing the effect of compounds/boosts.
There seems to be space in the UI that could be filled with a description of the effect of the boost such as "+100% upgradeController effectivenes"