feat: various tweaks

src/OpReceiverProxy.sol

@@ -45,11 +45,11 @@ contract OpReceiverProxy is ERC20, Utils {
     // ERC20 overrides
 
     function name() public pure override returns (string memory) {
-        return "Fast ETH";
+        return "Relay ETH";
     }
 
     function symbol() public pure override returns (string memory) {
-        return "FASTETH";
+        return "RETH";
     }
 
     // Public methods
@@ -98,13 +98,15 @@ contract OpReceiverProxy is ERC20, Utils {
             revert Unauthorized();
         }
 
+        // Parse the data received from the sender chain
         (uint256 id, address to, uint256 amount) = abi.decode(
             data,
             (uint256, address, uint256)
         );
 
         // If the parsed id was not already used then we simply forward the received funds to the parsed recipient
         if (!idWasUsed[id]) {
+            // This was a fast bridge, so take the fee out of the amount
             _send(to, amount - (amount * FEE_BPS) / 1e18);
 
             // Mark the id as being used
@@ -118,10 +120,12 @@ contract OpReceiverProxy is ERC20, Utils {
             revert Unauthorized();
         }
 
+        // Parse the data received from the sender chain
         (uint256 id, address to) = abi.decode(msg.data, (uint256, address));
 
         // If the parsed id was not already used then we simply forward the received funds to the parsed recipient
         if (!idWasUsed[id]) {
+            // This was a slow bridge, so no fee is taken out of the amount
             _send(to, msg.value);
 
             // Mark the id as being used