add dymension playground testnet (#5671)

* Create dymensionplaygroundtestnet chain.json

* Create logo.txt

* Add files via upload

* Create assetlist.json

* Delete testnets/dymensionplaygroundtestnet/images/logo.txt

* Update assetlist.json

* Update assetlist.json

* Update assetlist.json

testnets/dymensionplaygroundtestnet/assetlist.json

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+{
+  "$schema": "../../assetlist.schema.json",
+  "chain_name": "dymensionplaygroundtestnet",
+  "assets": [
+    {
+      "description": "The native governance and staking token of the Dymension Hub",
+      "denom_units": [
+        {
+          "denom": "adym",
+          "exponent": 0
+        },
+        {
+          "denom": "dym",
+          "exponent": 18
+        }
+      ],
+      "type_asset": "sdk.coin",
+      "base": "adym",
+      "name": "Dymension",
+      "display": "dym",
+      "symbol": "DYM",
+      "logo_URIs": {
+        "png": "https://raw.githubusercontent.com/cosmos/chain-registry/master/testnets/dymensionplaygroundtestnet/images/dymension-logo.png",
+        "svg": "https://raw.githubusercontent.com/cosmos/chain-registry/master/testnets/dymensionplaygroundtestnet/images/dymension-logo.svg"
+      },
+      "coingecko_id": "dymension",
+      "images": [
+        {
+          "png": "https://raw.githubusercontent.com/cosmos/chain-registry/master/testnets/dymensionplaygroundtestnet/images/dymension-logo.png",
+          "svg": "https://raw.githubusercontent.com/cosmos/chain-registry/master/testnets/dymensionplaygroundtestnet/images/dymension-logo.svg",
+          "theme": {
+            "primary_color_hex": "#f4e4d4"
+          }
+        }
+      ],
+      "socials": {
+        "website": "https://playground.dymension.xyz",
+        "twitter": "https://twitter.com/dymension"
+      }
+    },
+    {
+      "description": "The native token of Nim Network.",
+      "extended_description": "Nim Network is a highly-adoptable AI Gaming chain that will provide the ultimate ecosystem for exploration and development of games at the intersection of Web3 and AI.",
+      "denom_units": [
+        {
+          "denom": "ibc/FB53D1684F155CBB86D9CE917807E42B59209EBE3AD3A92E15EF66586C073942",
+          "exponent": 0,
+          "aliases": [
+            "anim"
+          ]
+        },
+        {
+          "denom": "nim",
+          "exponent": 18
+        }
+      ],
+      "type_asset": "ics20",
+      "base": "ibc/FB53D1684F155CBB86D9CE917807E42B59209EBE3AD3A92E15EF66586C073942",
+      "name": "Nim Network",
+      "display": "nim",
+      "symbol": "NIM",
+      "traces": [
+        {
+          "type": "ibc",
+          "counterparty": {
+            "chain_name": "nim",
+            "base_denom": "anim",
+            "channel_id": "channel-0"
+          },
+          "chain": {
+            "channel_id": "channel-49",
+            "path": "transfer/channel-49/anim"
+          }
+        }
+      ],
+      "images": [
+        {
+          "image_sync": {
+            "chain_name": "nim",
+            "base_denom": "anim"
+          },
+          "png": "https://raw.githubusercontent.com/cosmos/chain-registry/master/nim/images/nim.png",
+          "svg": "https://raw.githubusercontent.com/cosmos/chain-registry/master/nim/images/nim.svg",
+          "theme": {
+            "primary_color_hex": "#519cea"
+          }
+        }
+      ],
+      "socials": {
+        "website": "https://nim.network/",
+        "twitter": "https://twitter.com/nim_network"
+      },
+      "keywords": [
+        "gaming",
+        "AI"
+      ],
+      "logo_URIs": {
+        "png": "https://raw.githubusercontent.com/cosmos/chain-registry/master/nim/images/nim.png",
+        "svg": "https://raw.githubusercontent.com/cosmos/chain-registry/master/nim/images/nim.svg"
+      }
+    },
+    {
+      "description": "The native token of Mande Network.",
+      "extended_description": "Mande network is an open on-chain reputation layer on Web3",
+      "denom_units": [
+        {
+          "denom": "ibc/5A26C8DC8DA66F4DD94326E67F94510188F5F7AFE2DB3933A0C823670E56EABF",
+          "exponent": 0,
+          "aliases": [
+            "amand"
+          ]
+        },
+        {
+          "denom": "mand",
+          "exponent": 18
+        }
+      ],
+      "type_asset": "ics20",
+      "base": "ibc/5A26C8DC8DA66F4DD94326E67F94510188F5F7AFE2DB3933A0C823670E56EABF",
+      "name": "Mande Network",
+      "display": "mand",
+      "symbol": "MAND",
+      "traces": [
+        {
+          "type": "ibc",
+          "counterparty": {
+            "chain_name": "mande",
+            "base_denom": "amand",
+            "channel_id": "channel-0"
+          },
+          "chain": {
+            "channel_id": "channel-51",
+            "path": "transfer/channel-51/amand"
+          }
+        }
+      ],
+      "images": [
+        {
+          "image_sync": {
+            "chain_name": "mande",
+            "base_denom": "amand"
+          },
+          "png": "https://raw.githubusercontent.com/cosmos/chain-registry/master/mande/images/mande.png",
+          "svg": "https://raw.githubusercontent.com/cosmos/chain-registry/master/mande/images/mande.svg",
+          "theme": {
+            "primary_color_hex": "#274cbf"
+          }
+        }
+      ],
+      "socials": {
+        "website": "https://mande.network/",
+        "twitter": "https://twitter.com/MandeNetwork"
+      },
+      "keywords": [
+        "credibility",
+        "identity"
+      ],
+      "logo_URIs": {
+        "png": "https://raw.githubusercontent.com/cosmos/chain-registry/master/mande/images/mande.png",
+        "svg": "https://raw.githubusercontent.com/cosmos/chain-registry/master/mande/images/mande.svg"
+      }
+    }
+  ]
+}

testnets/dymensionplaygroundtestnet/chain.json

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+{
+  "$schema": "../../chain.schema.json",
+  "chain_name": "dymensionplaygroundtestnet",
+  "chain_type": "cosmos",
+  "chain_id": "dymension_1405-1",
+  "pretty_name": "Dymension Playground Testnet",
+  "status": "live",
+  "network_type": "testnet",
+  "website": "https://playground.dymension.xyz",
+  "bech32_prefix": "dym",
+  "daemon_name": "dymd",
+  "node_home": "$HOME/.dymension",
+  "key_algos": [
+    "ethsecp256k1"
+  ],
+   "extra_codecs": [
+    "ethermint"
+  ],
+  "slip44": 60,
+  "fees": {
+    "fee_tokens": [
+      {
+        "denom": "adym",
+        "low_gas_price": 5000000000,
+        "average_gas_price": 5500000000,
+        "high_gas_price": 6000000000
+      }
+    ]
+  },
+  "staking": {
+    "staking_tokens": [
+      {
+        "denom": "adym"
+      }
+    ]
+  },
+  "codebase": {
+    "git_repo": "https://github.com/dymensionxyz/dymension"
+  },
+  "logo_URIs": {
+    "png": "https://raw.githubusercontent.com/cosmos/chain-registry/master/testnets/dymensionplaygroundtestnet/images/dymension-logo.png",
+    "svg": "https://raw.githubusercontent.com/cosmos/chain-registry/master/testnets/dymensionplaygroundtestnet/images/dymension-logo.svg"
+  },
+  "apis": {
+    "rpc": [
+      {
+        "address": "https://rpc-dym-migration-test-2.mzonder.com",
+        "provider": "mzonder"
+      }
+    ],
+    "rest": [
+      {
+        "address": "https://api-dym-migration-test-2.mzonder.com",
+        "provider": "mzonder"
+      }
+    ]
+  },
+  "explorers": [
+    {
+      "kind": "dymscan",
+      "url": "https://pg.dym.fyi/",
+      "tx_page": "https://pg.dym.fyi//tx/${txHash}"
+    }
+  ],
+  "images": [
+    {
+    "png": "https://raw.githubusercontent.com/cosmos/chain-registry/master/testnets/dymensionplaygroundtestnet/images/dymension-logo.png",
+    "svg": "https://raw.githubusercontent.com/cosmos/chain-registry/master/testnets/dymensionplaygroundtestnet/images/dymension-logo.svg"
+    }
+  ]
+}