diff --git a/Cargo.toml b/Cargo.toml
index e2410e69..2e8548cd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ description = "List system USB buses and devices; a modern and compatible `lsusb
 repository = "https://github.com/tuna-f1sh/cyme"
 readme = "README.md"
 license = "GPL-3.0-or-later"
-version = "1.2.0"
+version = "1.2.1"
 edition = "2021"
 keywords = ["usb", "lsusb", "system_profiler", "macos", "libusb"]
 categories = ["command-line-utilities"]
diff --git a/src/config.rs b/src/config.rs
index 8cfd43ad..bb3b48e7 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -124,3 +124,20 @@ impl Config {
         dirs::config_dir().map(|x| x.join(CONF_DIR))
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_deserialize_example_file() {
+        let path = PathBuf::from("./doc").join("cyme_example_config.json");
+        Config::from_file(path).unwrap();
+    }
+
+    #[test]
+    fn test_deserialize_config_no_theme() {
+        let path = PathBuf::from("./tests/data").join("config_no_theme.json");
+        Config::from_file(path).unwrap();
+    }
+}
diff --git a/src/display.rs b/src/display.rs
index a307790f..58ad3574 100644
--- a/src/display.rs
+++ b/src/display.rs
@@ -599,9 +599,9 @@ impl Block<DeviceBlocks, USBDevice> for DeviceBlocks {
                 format!("{:^pad$}", "TPos", pad = pad.get(self).unwrap_or(&0))
             }
             // will be 000 mA = 6
-            DeviceBlocks::BusPower => "BusPwr".into(),
-            DeviceBlocks::BusPowerUsed => "PwrUsd".into(),
-            DeviceBlocks::ExtraCurrentUsed => "PwrExr".into(),
+            DeviceBlocks::BusPower => "PBus".into(),
+            DeviceBlocks::BusPowerUsed => "PUsd".into(),
+            DeviceBlocks::ExtraCurrentUsed => "PExr".into(),
             // 00.00 = 5
             DeviceBlocks::BcdDevice => "Dev V".into(),
             DeviceBlocks::BcdUsb => "USB V".into(),
@@ -749,18 +749,18 @@ impl Block<ConfigurationBlocks, USBConfiguration> for ConfigurationBlocks {
         if verbose {
             vec![
                 ConfigurationBlocks::Number,
-                ConfigurationBlocks::Name,
                 ConfigurationBlocks::IconAttributes,
                 ConfigurationBlocks::Attributes,
                 ConfigurationBlocks::NumInterfaces,
                 ConfigurationBlocks::MaxPower,
+                ConfigurationBlocks::Name,
             ]
         } else {
             vec![
                 ConfigurationBlocks::Number,
-                ConfigurationBlocks::Name,
                 ConfigurationBlocks::IconAttributes,
                 ConfigurationBlocks::MaxPower,
+                ConfigurationBlocks::Name,
             ]
         }
     }
@@ -841,7 +841,7 @@ impl Block<ConfigurationBlocks, USBConfiguration> for ConfigurationBlocks {
         match self {
             ConfigurationBlocks::Number => " #".into(),
             ConfigurationBlocks::NumInterfaces => "I#".into(),
-            ConfigurationBlocks::MaxPower => "MaxPwr".into(),
+            ConfigurationBlocks::MaxPower => "PMax".into(),
             ConfigurationBlocks::Name => {
                 format!("{:^pad$}", "Name", pad = pad.get(self).unwrap_or(&0))
             }
diff --git a/tests/common/mod.rs b/tests/common/mod.rs
index bf0b65c3..c58fcc20 100644
--- a/tests/common/mod.rs
+++ b/tests/common/mod.rs
@@ -254,9 +254,16 @@ impl TestEnv {
 
         // Compare actual output to expected output.
         assert_json_diff::assert_json_include!(actual: json!(actual), expected: json!(expected));
-        // if json!(actual) != json!(expected) {
-        //     panic!("{}", format_output_error(&args, &expected, &actual));
-        // }
+    }
+
+    /// Parses output back to SPUSBDataType and checks device with `port_path` exists in it
+    pub fn assert_output_contains_port_path(&self, dump_file: Option<&str>, args: &[&str], port_path: &str) {
+        // Normalize both expected and actual output.
+        let output = self.assert_success_and_get_output(dump_file, args);
+        let actual = String::from_utf8_lossy(&output.stdout).to_string();
+        let spdata_out = serde_json::from_str::<cyme::system_profiler::SPUSBDataType>(&actual).unwrap();
+
+        assert_eq!(spdata_out.get_node(port_path).is_some(), true);
     }
 
     /// Similar to assert_output, but able to handle non-utf8 output
diff --git a/tests/data/config_no_theme.json b/tests/data/config_no_theme.json
new file mode 100644
index 00000000..8564970e
--- /dev/null
+++ b/tests/data/config_no_theme.json
@@ -0,0 +1,51 @@
+{
+  "blocks": [
+    "bus-number",
+    "device-number",
+    "icon",
+    "vendor-id",
+    "product-id",
+    "name",
+    "serial",
+    "speed"
+  ],
+  "bus-blocks": [
+    "name",
+    "host-controller"
+  ],
+  "config-blocks": [
+    "number",
+    "name",
+    "icon-attributes",
+    "max-power"
+  ],
+  "interface-blocks": [
+    "port-path",
+    "icon",
+    "alt-setting",
+    "class-code",
+    "sub-class",
+    "protocol",
+    "name"
+  ],
+  "endpoint-blocks": [
+    "number",
+    "direction",
+    "transfer-type",
+    "sync-type",
+    "usage-type",
+    "max-packet-size"
+  ],
+  "mask-serials": null,
+  "lsusb": false,
+  "tree": false,
+  "verbose": 0,
+  "more": false,
+  "hide-buses": false,
+  "hide-hubs": false,
+  "decimal": false,
+  "no-padding": false,
+  "ascii": false,
+  "headings": false,
+  "force-libusb": false
+}