diff --git a/Package.resolved b/Package.resolved
index f0e739d..ee34bc3 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -1,5 +1,5 @@
 {
-  "originHash" : "e759c45271facbb3650829c703702a2ac4817adf75a8116cc3d77eae8e3d3bae",
+  "originHash" : "541a757caafbe47ca9354751ce6a36bcabcc1fb6755f04009a4f675dfe6cb0ad",
   "pins" : [
     {
       "identity" : "swift-argument-parser",
@@ -27,6 +27,15 @@
         "revision" : "3907a9438f5b57d317001dc99f3f11b46882272b",
         "version" : "0.10.0"
       }
+    },
+    {
+      "identity" : "yams",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/jpsim/Yams.git",
+      "state" : {
+        "revision" : "3036ba9d69cf1fd04d433527bc339dc0dc75433d",
+        "version" : "5.1.3"
+      }
     }
   ],
   "version" : 3
diff --git a/Package.swift b/Package.swift
index 2d8303d..50f7fb6 100644
--- a/Package.swift
+++ b/Package.swift
@@ -15,6 +15,7 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-argument-parser.git", from: "1.4.0"),
         .package(url: "https://github.com/pointfreeco/swift-tagged.git", from: "0.10.0"),
         .package(url: "https://github.com/pointfreeco/swift-concurrency-extras.git", from: "1.1.0"),
+        .package(url: "https://github.com/jpsim/Yams.git", from: "5.0.6"),
     ],
     targets: [
         .executableTarget(
@@ -23,6 +24,7 @@ let package = Package(
                 .product(name: "ArgumentParser", package: "swift-argument-parser"),
                 .product(name: "TaggedTime", package: "swift-tagged"),
                 .product(name: "ConcurrencyExtras", package: "swift-concurrency-extras"),
+                .product(name: "Yams", package: "Yams"),
             ], swiftSettings: [
                 .enableExperimentalFeature("StrictConcurrency"),
             ]
diff --git a/Sources/ActivityConfiguration.swift b/Sources/ActivityConfiguration.swift
new file mode 100644
index 0000000..d9ac19c
--- /dev/null
+++ b/Sources/ActivityConfiguration.swift
@@ -0,0 +1,41 @@
+import Foundation
+import Yams
+import TaggedTime
+
+struct ActivityStyleConfig: Codable {
+    let name: String
+    let refreshRate: UInt64
+    let states: [String]
+    let checkmark: String?
+    let prompt: String?
+}
+
+struct ActivityConfiguration {
+    struct StyleConfig {
+        let indicator: ActivityIndicator
+        let checkmark: String
+        let prompt: String
+        
+        static let defaultCheckmark = "✓"
+        static let defaultPrompt = ">"
+    }
+    
+    static func loadConfiguration(from path: String) throws -> [ActivityStyleConfig] {
+        let url = URL(fileURLWithPath: path)
+        let yamlString = try String(contentsOf: url, encoding: .utf8)
+        let decoder = YAMLDecoder()
+        return try decoder.decode([ActivityStyleConfig].self, from: yamlString)
+    }
+    
+    static func createStyleConfig(from config: ActivityStyleConfig) -> StyleConfig {
+        let configuration = ActivityIndicator.Configuration(
+            refreshRate: Milliseconds(config.refreshRate),
+            states: config.states
+        )
+        return StyleConfig(
+            indicator: ActivityIndicator(configuration: configuration),
+            checkmark: config.checkmark ?? StyleConfig.defaultCheckmark,
+            prompt: config.prompt ?? StyleConfig.defaultPrompt
+        )
+    }
+}
\ No newline at end of file
diff --git a/Sources/ActivityIndicator+CommandArgument.swift b/Sources/ActivityIndicator+CommandArgument.swift
index 5e47c57..6632966 100644
--- a/Sources/ActivityIndicator+CommandArgument.swift
+++ b/Sources/ActivityIndicator+CommandArgument.swift
@@ -1,23 +1,46 @@
 import ArgumentParser
+import TaggedTime
 
-enum ActivityIndicatorStyle: String, CaseIterable, ExpressibleByArgument {
+enum ActivityIndicatorStyle: ExpressibleByArgument {
     case dots
-    case kitt
-    case snake
     case spinner
+    case custom(String)
+    
+    init?(argument: String) {
+        switch argument {
+        case "dots": self = .dots
+        case "spinner": self = .spinner
+        default: self = .custom(argument)
+        }
+    }
+    
+    static var allCases: [String] {
+        ["dots", "spinner"]
+    }
 }
 
 extension ActivityIndicator {
-    static func make(style: ActivityIndicatorStyle) -> ActivityIndicator {
+    static func make(style: ActivityIndicatorStyle, configPath: String?) -> (indicator: ActivityIndicator, checkmark: String, prompt: String) {
+        let defaultConfig = (indicator: ActivityIndicator.spinner, checkmark: ActivityConfiguration.StyleConfig.defaultCheckmark, prompt: ActivityConfiguration.StyleConfig.defaultPrompt)
+        // Debug logging for configuration loading
+        print("Style: \(style), Config Path: \(configPath ?? "nil")")
+        if case let .custom(styleName) = style, let configPath = configPath {
+            do {
+                let configs = try ActivityConfiguration.loadConfiguration(from: configPath)
+                if let matchingConfig = configs.first(where: { $0.name == styleName }) {
+                    let styleConfig = ActivityConfiguration.createStyleConfig(from: matchingConfig)
+                    return (indicator: styleConfig.indicator, checkmark: styleConfig.checkmark, prompt: styleConfig.prompt)
+                }
+            } catch {
+                print("\(ANSI.yellow)[!] progressline: Failed to load custom style '\(styleName)' from config: \(error)\(ANSI.reset)")
+            }
+        }
+        
+        // Fallback to built-in styles
         switch style {
-        case .dots:
-            .dots
-        case .kitt:
-            .kitt
-        case .snake:
-            .snake
-        case .spinner:
-            .spinner
+        case .dots: return defaultConfig
+        case .spinner: return defaultConfig
+        case .custom(_): return defaultConfig
         }
     }
-}
+}
\ No newline at end of file
diff --git a/Sources/ActivityIndicator.swift b/Sources/ActivityIndicator.swift
index 7534758..2dd69af 100644
--- a/Sources/ActivityIndicator.swift
+++ b/Sources/ActivityIndicator.swift
@@ -39,39 +39,14 @@ extension ActivityIndicator {
         return ActivityIndicator(configuration: configuration)
     }()
 
-    static let kitt: ActivityIndicator = {
-        let configuration = Configuration(
-            refreshRate: 125,
-            states: [
-                "▰▱▱▱▱",
-                "▰▰▱▱▱",
-                "▰▰▰▱▱",
-                "▱▰▰▰▱",
-                "▱▱▰▰▰",
-                "▱▱▱▰▰",
-                "▱▱▱▱▰",
-                "▱▱▱▰▰",
-                "▱▱▰▰▰",
-                "▱▰▰▰▱",
-                "▰▰▰▱▱",
-                "▰▰▱▱▱",
-            ]
-        )
-        return ActivityIndicator(configuration: configuration)
-    }()
-
-    static let snake: ActivityIndicator = {
+    static let spinner: ActivityIndicator = {
         let configuration = Configuration(
             refreshRate: 125,
             states: [
-                "▰▱▱▱▱",
-                "▰▰▱▱▱",
-                "▰▰▰▱▱",
-                "▱▰▰▰▱",
-                "▱▱▰▰▰",
-                "▱▱▱▰▰",
-                "▱▱▱▱▰",
-                "▱▱▱▱▱",
+                "\\",
+                "|",
+                "/",
+                "-",
             ]
         )
         return ActivityIndicator(configuration: configuration)
diff --git a/Sources/ProgressLine.swift b/Sources/ProgressLine.swift
index 27ea90e..71d60ae 100644
--- a/Sources/ProgressLine.swift
+++ b/Sources/ProgressLine.swift
@@ -15,8 +15,11 @@ struct ProgressLine: AsyncParsableCommand {
     @Option(name: [.long, .customShort("t")], help: "The static text to display instead of the latest stdin data.")
     var staticText: String?
 
-    @Option(name: [.customLong("activity-style"), .customShort("s")], help: "The style of the activity indicator.")
-    var activityIndicatorStyle: ActivityIndicatorStyle = .dots
+    @Option(name: [.customLong("activity-style"), .customShort("s")], help: "The style of the activity indicator (built-in or custom).")
+    var activityIndicatorStyle: ActivityIndicatorStyle = .spinner
+
+    @Option(name: [.customLong("config-path"), .customShort("c")], help: "Path to the activity styles configuration file.")
+    var configPath: String?
 
     @Option(name: [.customLong("original-log-path"), .customShort("l")], help: "Save the original log to a file.")
     var originalLogPath: String?
@@ -45,23 +48,30 @@ struct ProgressLine: AsyncParsableCommand {
         let logger = AboveProgressLineLogger(printers: printers)
 
         #if DEBUG
-            let activityIndicator: ActivityIndicator = testMode ? .disabled() : .make(style: activityIndicatorStyle)
+        let (indicator, checkmark, prompt) = testMode ? 
+            (ActivityIndicator.disabled(), "✓", ">") : 
+            ActivityIndicator.make(style: activityIndicatorStyle, configPath: configPath)
         #else
             let testMode = false
-            let activityIndicator: ActivityIndicator = .make(style: activityIndicatorStyle)
+            let (indicator, checkmark, prompt) = ActivityIndicator.make(style: activityIndicatorStyle, configPath: configPath)
         #endif
+
         let progressLineController = await ProgressLineController.buildAndStart(
             textMode: staticText.map { .staticText($0) } ?? .stdin,
             printers: printers,
             logger: logger,
-            activityIndicator: activityIndicator,
+            activityIndicator: indicator,
+            checkmark: checkmark,
+            prompt: prompt,
             mockActivityAndDuration: testMode
         )
+
         let originalLogController = if let originalLogPath {
             await OriginalLogController(logger: logger, path: originalLogPath)
         } else {
             OriginalLogController?.none
         }
+        
         let matchesController = await MatchesController(logger: logger, regexps: matchesToLog)
         let logAllController = shouldLogAll ? LogAllController(logger: logger) : nil
 
diff --git a/Sources/ProgressLineController.swift b/Sources/ProgressLineController.swift
index 53cb43c..897d7ac 100644
--- a/Sources/ProgressLineController.swift
+++ b/Sources/ProgressLineController.swift
@@ -39,6 +39,8 @@ final actor ProgressLineController {
         printers: PrintersHolder,
         logger: AboveProgressLineLogger,
         activityIndicator: ActivityIndicator,
+        checkmark: String,
+        prompt: String,
         mockActivityAndDuration: Bool = false
     ) async -> Self {
         let progressTracker = ProgressTracker.start()
@@ -46,7 +48,9 @@ final actor ProgressLineController {
         let progressLineFormatter = ProgressLineFormatter(
             activityIndicator: activityIndicator,
             windowSizeObserver: windowSizeObserver,
-            mockActivityAndDuration: mockActivityAndDuration
+            mockActivityAndDuration: mockActivityAndDuration,
+            checkmark: checkmark,
+            prompt: prompt
         )
 
         let controller = Self(
diff --git a/Sources/ProgressLineFormatter.swift b/Sources/ProgressLineFormatter.swift
index 113f0f3..1802483 100644
--- a/Sources/ProgressLineFormatter.swift
+++ b/Sources/ProgressLineFormatter.swift
@@ -21,15 +21,23 @@ final class ProgressLineFormatter: Sendable {
     private let activityIndicator: ActivityIndicator
     private let windowSizeObserver: WindowSizeObserver?
     private let mockActivityAndDuration: Bool
+    private let checkmark: String
+    private let prompt: String
 
     init(
         activityIndicator: ActivityIndicator,
         windowSizeObserver: WindowSizeObserver?,
-        mockActivityAndDuration: Bool
+        mockActivityAndDuration: Bool,
+        checkmark: String,
+        prompt: String
     ) {
         self.activityIndicator = activityIndicator
         self.windowSizeObserver = windowSizeObserver
         self.mockActivityAndDuration = mockActivityAndDuration
+        self.checkmark = checkmark
+        self.prompt = prompt
+        // Debug logging for symbols
+        print("Initialized ProgressLineFormatter with checkmark: '\(checkmark)' and prompt: '\(prompt)'")
     }
 
     func inProgress(progress: Progress) -> String {
@@ -38,7 +46,7 @@ final class ProgressLineFormatter: Sendable {
 
         let styledActivityIndicator = ANSI.blue + activityIndicator + ANSI.reset
         let styledDuration = ANSI.bold + formattedDuration + ANSI.reset
-        let styledPrompt = ANSI.blue + Symbol.prompt + ANSI.reset
+        let styledPrompt = ANSI.blue + prompt + ANSI.reset
 
         return buildResultString(
             styledActivityIndicator: styledActivityIndicator,
@@ -51,9 +59,9 @@ final class ProgressLineFormatter: Sendable {
     func finished(progress: Progress?) -> String {
         let formattedDuration = mockActivityAndDuration ? "<duration>" : progress.map { formatDuration(from: $0.duration) }
 
-        let styledActivityIndicator = ANSI.green + Symbol.checkmark + ANSI.reset
+        let styledActivityIndicator = ANSI.green + checkmark + ANSI.reset
         let styledDuration = formattedDuration.map { ANSI.bold + $0 + ANSI.reset }
-        let styledPrompt = ANSI.green + Symbol.prompt + ANSI.reset
+        let styledPrompt = ANSI.green + prompt + ANSI.reset
 
         return buildResultString(
             styledActivityIndicator: styledActivityIndicator,
diff --git a/custom-styles.yml b/custom-styles.yml
new file mode 100644
index 0000000..87bba89
--- /dev/null
+++ b/custom-styles.yml
@@ -0,0 +1,89 @@
+# Knightrider
+- name: kitt      # Custom style name
+  checkmark: "✔"  # Custom checkmark
+  prompt: ">"     # Custom prompt
+  refreshRate: 125 # Custom refresh in miliseconds
+  states:
+    - "▰▱▱▱▱"
+    - "▰▰▱▱▱"
+    - "▰▰▰▱▱"
+    - "▱▰▰▰▱"
+    - "▱▱▰▰▰"
+    - "▱▱▱▰▰"
+    - "▱▱▱▱▰"
+    - "▱▱▱▰▰"
+    - "▱▱▰▰▰"
+    - "▱▰▰▰▱"
+    - "▰▰▰▱▱"
+    - "▰▰▱▱▱"
+
+# Snake
+- name: snake
+  checkmark: "✔"
+  prompt: ">"
+  refreshRate: 125
+  states:
+    - "▰▱▱▱▱"
+    - "▰▰▱▱▱"
+    - "▰▰▰▱▱"
+    - "▱▰▰▰▱"
+    - "▱▱▰▰▰"
+    - "▱▱▱▰▰"
+    - "▱▱▱▱▰"
+    - "▱▱▱▱▱"
+
+# Built-in like animation with hearts
+- name: hearts
+  checkmark: "❤️"
+  prompt: "💘"
+  refreshRate: 125
+  states:
+    - 💗
+    - 💓
+    - 💝
+    - 💓
+
+# Arrow animation with longer refresh rate
+- name: arrows
+  checkmark: "✔"
+  prompt: ">"
+  refreshRate: 150
+  states:
+    - "→ "
+    - "⇒ "
+    - "⟹ "
+    - "⇒ "
+
+# Blocks progressing
+- name: blocks
+  checkmark: "✔"
+  prompt: ">"
+  refreshRate: 100
+  states:
+    - "▒  "
+    - "▓  "
+    - "█  "
+    - "█░ "
+    - "█▒ "
+    - "█▓ "
+    - "██ "
+    - "██░"
+    - "██▒"
+    - "██▓"
+    - "███"
+    - "░  "
+
+# Rotating cross
+- name: cross
+  checkmark: "✔"
+  prompt: ">"
+  refreshRate: 100
+  states:
+    - "╔"
+    - "╦"
+    - "╗"
+    - "╣"
+    - "╝"
+    - "╩"
+    - "╚"
+    - "╠"