diff --git a/.gitignore b/.gitignore
index 59fd4b3..92246ac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,4 +11,4 @@ build/
 dist/
 draft/
 Makefile
-perception-default/
\ No newline at end of file
+segancha-default/
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4666830..083949f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required (VERSION 3.1)
 
-project(perception)
+project(segancha)
 
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Wall -Wconversion -Wno-unused-private-field -Wno-unused-variable -Wno-unused-parameter -fno-omit-frame-pointer -fsanitize=address")
@@ -21,24 +21,24 @@ set_target_properties(native PROPERTIES SUFFIX "${PYTHON_MODULE_EXTENSION}")
 
 if(CMAKE_BUILD_TYPE MATCHES "Debug")
 
-    add_library(perception SHARED ${LIB_SOURCES}) 
-    target_include_directories(perception PUBLIC include)
+    add_library(segancha SHARED ${LIB_SOURCES}) 
+    target_include_directories(segancha PUBLIC include)
 
     add_executable(testevo1 test/example1.cpp)
-    target_link_libraries(testevo1 perception)
+    target_link_libraries(testevo1 segancha)
     add_executable(testevo2 test/example2.cpp)
-    target_link_libraries(testevo2 perception)
+    target_link_libraries(testevo2 segancha)
 
     add_executable(testlexi test/testlexi.cpp)
-    target_link_libraries(testlexi perception)
+    target_link_libraries(testlexi segancha)
 
     add_executable(testCIEDE2000 test/testCIEDE2000.cpp)
-    target_link_libraries(testCIEDE2000 perception)
+    target_link_libraries(testCIEDE2000 segancha)
     add_executable(testcolorspace test/testcolorspace.cpp)
-    target_link_libraries(testcolorspace perception)
+    target_link_libraries(testcolorspace segancha)
     add_executable(testfitness test/testfitness.cpp)
-    target_link_libraries(testfitness perception)
+    target_link_libraries(testfitness segancha)
     add_executable(testfitness2 test/testfitness2.cpp)
-    target_link_libraries(testfitness2 perception)
+    target_link_libraries(testfitness2 segancha)
 
 endif(CMAKE_BUILD_TYPE MATCHES "Debug")
diff --git a/README.md b/README.md
index 1fb7d0a..52a697f 100644
--- a/README.md
+++ b/README.md
@@ -1,20 +1,20 @@
-# Perception
+# Segancha
 
 A Python3 library with CLI that generates the optimal discernible color palette for theme building.
 
 ## Installation and Usage
 
-    pip3 install https://github.com/gywn/perception/archive/v0.0.2.tar.gz
+    pip3 install https://github.com/gywn/segancha/archive/v0.0.2.tar.gz
 
 Generate demo page
 
-    perception --profile demo
-    cd ./perception-default/demo/
+    segancha --profile demo
+    cd ./segancha-default/demo/
 
 Generate warm & dark theme extension for VSCode
 
-    perception --name warm-and-dark --temperature 4500 --background 15 --profile vscode
-    rsync -a ./perception-warm-and-dark/vscode/ ~/.vscode/extensions/
+    segancha --name warm-and-dark --temperature 4500 --background 15 --profile vscode
+    rsync -a ./segancha-warm-and-dark/vscode/ ~/.vscode/extensions/
 
 ## Aknowladgement
 
diff --git a/include/fitness.h b/include/fitness.h
index 39a401c..3db3c9c 100644
--- a/include/fitness.h
+++ b/include/fitness.h
@@ -22,7 +22,7 @@ double offChroma(const color::LCH &lch, double C);
 LexiProduct<double> fitnessFunc(const std::vector<color::LAB> &lab,
                                 size_t M = 0, double maxC = -1.);
 
-struct PerceptionResult {
+struct SeganchaResult {
   unsigned long flags;
   double L;
   double maxC;
@@ -30,9 +30,9 @@ struct PerceptionResult {
   std::vector<color::RGB> rgb;
   LexiProduct<double> fitness;
 };
-using PerceptionResult = struct PerceptionResult;
+using SeganchaResult = struct SeganchaResult;
 
-std::ostream &operator<<(std::ostream &os, const PerceptionResult &res);
+std::ostream &operator<<(std::ostream &os, const SeganchaResult &res);
 
 /*
  * @param M numbers of free colors
@@ -40,10 +40,10 @@ std::ostream &operator<<(std::ostream &os, const PerceptionResult &res);
  * @param maxC maximal chroma, < 0 to be ignored
  * @param fixed vector of fixed colors, optional
  * @param quiet don't write info to stdout
- * @return PerceptionResult
+ * @return SeganchaResult
  */
-PerceptionResult perception(size_t M, double L = -1, double maxC = -1,
-                            std::vector<color::LAB> const *fixed = nullptr,
-                            bool quiet = false);
+SeganchaResult segancha(size_t M, double L = -1, double maxC = -1,
+                        std::vector<color::LAB> const *fixed = nullptr,
+                        bool quiet = false);
 
 color::LCH maxChroma(const color::LCH &lch, double maxC = -1);
diff --git a/python/cli.py b/python/cli.py
index ad08d94..0c91689 100644
--- a/python/cli.py
+++ b/python/cli.py
@@ -8,13 +8,13 @@
 
 def argparser():
     ps = ArgumentParser(
-        prog='perception',
+        prog='segancha',
         description=dedent("""
             Generate optimized discernible color palette and themes settings
 
             Example:
-              perception --temperature -1 --profile demo
-              perception --background 97 --profile vscode
+              segancha --temperature -1 --profile demo
+              segancha --background 97 --profile vscode
             """),
         formatter_class=RawDescriptionHelpFormatter)
 
diff --git a/python/data/demo/perception-{{name}}-demo.html.mustache b/python/data/demo/segancha-{{name}}-demo.html.mustache
similarity index 97%
rename from python/data/demo/perception-{{name}}-demo.html.mustache
rename to python/data/demo/segancha-{{name}}-demo.html.mustache
index 53e462d..63ef13d 100644
--- a/python/data/demo/perception-{{name}}-demo.html.mustache
+++ b/python/data/demo/segancha-{{name}}-demo.html.mustache
@@ -2,7 +2,7 @@
 <html lang="en">
 <head>
     <meta charset="utf-8">
-    <title>Perception Theme - {{name}} | Demo</title>
+    <title>Segancha Theme - {{name}} | Demo</title>
     <link href="https://fonts.googleapis.com/css?family=Inconsolata:400,700" rel="stylesheet">
     <style>
         .fg { color: #{{fg-hex}}; }
@@ -81,7 +81,7 @@
 </head>
 <body id="home" class='fg bg-0'>
 <div id="wrapper">
-    <img src='perception-{{name}}-thumb.svg' id='thumb' />
+    <img src='segancha-{{name}}-thumb.svg' id='thumb' />
     <div id='hex-wrapper'>
         <pre style="width: calc(18px * 14);">
 <b>Foreground:</b>
diff --git a/python/data/demo/perception-{{name}}-thumb.svg.mustache b/python/data/demo/segancha-{{name}}-thumb.svg.mustache
similarity index 100%
rename from python/data/demo/perception-{{name}}-thumb.svg.mustache
rename to python/data/demo/segancha-{{name}}-thumb.svg.mustache
diff --git a/python/data/vim/colors/perception-{{name}}.vim.mustache b/python/data/vim/colors/segancha-{{name}}.vim.mustache
similarity index 98%
rename from python/data/vim/colors/perception-{{name}}.vim.mustache
rename to python/data/vim/colors/segancha-{{name}}.vim.mustache
index b363667..f703855 100644
--- a/python/data/vim/colors/perception-{{name}}.vim.mustache
+++ b/python/data/vim/colors/segancha-{{name}}.vim.mustache
@@ -6,7 +6,7 @@ endif
 
 " ... 1~15 should be set by the terminal
 
-let g:colors_name = 'perception-{{name}}'
+let g:colors_name = 'segancha-{{name}}'
 
 hi NonText      ctermfg=7    ctermbg=NONE guifg=#{{bg-1-hex}} guibg=NONE    cterm=NONE         gui=NONE
 hi Normal       ctermfg=NONE ctermbg=NONE guifg=#{{fg-hex}} guibg=#{{bg-0-hex}} cterm=NONE         gui=NONE
@@ -63,7 +63,7 @@ hi Cursor       guifg=NONE   guibg=#{{bg-1-hex}}
 hi iCursor      guifg=NONE   guibg=#{{main-0-hex}}
 hi vCursor      guifg=NONE   guibg=#{{yellow-1-hex}}
 
-augroup ColorSchemePerception
+augroup ColorSchemeSegancha
   au InsertLeave * hi  StatusLine   ctermfg=NONE ctermbg=NONE guifg=NONE    guibg=NONE    cterm=bold,reverse gui=bold,reverse
   au InsertEnter * hi  StatusLine   ctermfg=NONE ctermbg=NONE guifg=#{{main-0-hex}}    guibg=NONE    cterm=bold,reverse gui=bold,reverse
   " au InsertEnter * hi  CursorLine   ctermfg=NONE ctermbg=NONE cterm=NONE
diff --git a/python/data/vscode/perception-theme-{{name}}/package.json.mustache b/python/data/vscode/segancha-theme-{{name}}/package.json.mustache
similarity index 57%
rename from python/data/vscode/perception-theme-{{name}}/package.json.mustache
rename to python/data/vscode/segancha-theme-{{name}}/package.json.mustache
index 4f402c1..9c381b2 100644
--- a/python/data/vscode/perception-theme-{{name}}/package.json.mustache
+++ b/python/data/vscode/segancha-theme-{{name}}/package.json.mustache
@@ -1,5 +1,5 @@
 {
-	"name": "perception-theme-{{name}}",
+	"name": "segancha-theme-{{name}}",
 	"version": "{{version}}",
 	"engines": {
 		"vscode": "^0.9.0"
@@ -8,9 +8,9 @@
 	"contributes": {
 		"themes": [
 			{
-				"label": "Perception Colors Theme {{name}}",
+				"label": "Segancha Colors Theme {{name}}",
 				"uiTheme": "{{ui-theme}}",
-				"path": "./themes/perception-theme.json"
+				"path": "./themes/segancha-theme.json"
 			}
 		]
 	}
diff --git a/python/data/vscode/perception-theme-{{name}}/themes/perception-theme.json.mustache b/python/data/vscode/segancha-theme-{{name}}/themes/segancha-theme.json.mustache
similarity index 99%
rename from python/data/vscode/perception-theme-{{name}}/themes/perception-theme.json.mustache
rename to python/data/vscode/segancha-theme-{{name}}/themes/segancha-theme.json.mustache
index f97068f..f9d047b 100644
--- a/python/data/vscode/perception-theme-{{name}}/themes/perception-theme.json.mustache
+++ b/python/data/vscode/segancha-theme-{{name}}/themes/segancha-theme.json.mustache
@@ -1,5 +1,5 @@
 {
-    "name": "Perception Colors Theme",
+    "name": "Segancha Colors Theme",
     "colors": {
         // Contrast colors (This is not a high contrast theme)
         // "contrastActiveBorder": "#f00",
diff --git a/python/profile.py b/python/profile.py
index fc8b24c..dcc4cf6 100644
--- a/python/profile.py
+++ b/python/profile.py
@@ -38,7 +38,7 @@ def recursive_render(src_path,
 # @param args.verbose
 def parse(args, ctx):
     srcs = ['.', os.path.join(os.path.dirname(__file__), 'data')]
-    dest = f'./perception-{args.name}'
+    dest = f'./segancha-{args.name}'
     if not args.profiles:
         args.profiles = ['demo']
         print('Available builtin profiles:')
diff --git a/python/theme.py b/python/theme.py
index 29029db..6406bdd 100644
--- a/python/theme.py
+++ b/python/theme.py
@@ -1,5 +1,5 @@
 from itertools import product
-from .native import LABtoRGB, LCHtoLAB, maxChroma, perception, IlluminantD
+from .native import LABtoRGB, LCHtoLAB, maxChroma, segancha, IlluminantD
 
 # D50_x = 0.3457048
 SEMANTIC_HUE = {'red': 30, 'yellow': 80, 'green': 120, 'blue': 260}
@@ -61,7 +61,7 @@ def update_context(args, ctx):
             + f'args.L0={args.L0} Lb={args.Lb} T={args.T}')
 
     sgn = 1 if args.Lf > args.Lb else -1
-    palette3 = perception(
+    palette3 = segancha(
         7,
         L=args.L3,
         maxC=args.maxC,
diff --git a/python/version.py b/python/version.py
index d18f409..b8023d8 100644
--- a/python/version.py
+++ b/python/version.py
@@ -1 +1 @@
-__version__ = '0.0.2'
+__version__ = '0.0.1'
diff --git a/setup.py b/setup.py
index f832515..5162f96 100644
--- a/setup.py
+++ b/setup.py
@@ -76,15 +76,15 @@ def build_extension(self, ext):
     exec(f.read())
 
 setup(
-    name='perception',
+    name='segancha',
     version=__version__,  # noqa: F821
-    description='Perception colors model',
+    description='Segancha colors model',
     install_requires=['pystache'],
-    packages=['perception'],
-    package_dir={'perception': 'python'},
+    packages=['segancha'],
+    package_dir={'segancha': 'python'},
     ext_modules=[
         CMakeExtension(
-            'perception.native',
+            'segancha.native',
             sources=[
                 f
                 for f in
@@ -94,14 +94,14 @@ def build_extension(self, ext):
             ])
     ],
     package_data={
-        'perception': [
+        'segancha': [
             os.path.relpath(p, 'python')
             for p in glob('python/data/**', recursive=True)
         ]
     },
     entry_points={'console_scripts': [
-        'perception = perception.cli:main',
+        'segancha = segancha.cli:main',
     ]},
     cmdclass=dict(build_ext=CMakeBuild),
-    url='https://github.com/gywn/perception',
-    download_url='https://github.com/gywn/perception/archive/v0.0.2.tar.gz')
+    url='https://github.com/gywn/segancha',
+    download_url='https://github.com/gywn/segancha/archive/v0.0.1.tar.gz')
diff --git a/src/fitness.cpp b/src/fitness.cpp
index 39ba001..4d80c96 100644
--- a/src/fitness.cpp
+++ b/src/fitness.cpp
@@ -111,7 +111,7 @@ void fill_lab(const std::vector<double> &x, double L,
     lab[j] = color::LAB{L, x[2 * j], x[2 * j + 1]};
 }
 
-std::ostream &operator<<(std::ostream &os, const PerceptionResult &res) {
+std::ostream &operator<<(std::ostream &os, const SeganchaResult &res) {
   os << "{" << std::endl << "  flags: " << res.flags << std::endl;
   os << "  L: " << res.L << std::endl;
   os << "  rgb: [" << std::endl;
@@ -122,8 +122,8 @@ std::ostream &operator<<(std::ostream &os, const PerceptionResult &res) {
   return os;
 }
 
-PerceptionResult perception(size_t M, double L, double maxC,
-                            std::vector<color::LAB> const *fixed, bool quiet) {
+SeganchaResult segancha(size_t M, double L, double maxC,
+                        std::vector<color::LAB> const *fixed, bool quiet) {
   bool freeL = L < 0;
   bool noFixed = fixed == nullptr || fixed->size() == 0;
   size_t fixedM = fixed == nullptr ? 0 : fixed->size();
@@ -196,9 +196,9 @@ PerceptionResult perception(size_t M, double L, double maxC,
     rgb[i] = color::LABtoRGB(lab[i]);
   }
 
-  return PerceptionResult{flags,          freeL ? xfinal[2 * M] : L,
-                          finalMaxC,      std::move(lab),
-                          std::move(rgb), std::move(fitness)};
+  return SeganchaResult{flags,          freeL ? xfinal[2 * M] : L,
+                        finalMaxC,      std::move(lab),
+                        std::move(rgb), std::move(fitness)};
 }
 
 color::LCH maxChroma(const color::LCH &lch, double maxC) {
diff --git a/src/python.cpp b/src/python.cpp
index 16eeb12..de8b5f7 100644
--- a/src/python.cpp
+++ b/src/python.cpp
@@ -89,7 +89,7 @@ static PyObject *IlluminantDChromaticity(PyObject *self, PyObject *args) {
   return Py_BuildValue("(ddd)", lab.l, lab.a, lab.b);
 }
 
-static PyObject *pyperception(PyObject *self, PyObject *args, PyObject *kw) {
+static PyObject *pysegancha(PyObject *self, PyObject *args, PyObject *kw) {
   // color::LAB fg, bg;
   unsigned long M;
   double L = -1;
@@ -139,7 +139,7 @@ static PyObject *pyperception(PyObject *self, PyObject *args, PyObject *kw) {
   //   std::cout << std::endl;
   // }
 
-  const auto result = perception(M, L, maxC, &fixed, quiet);
+  const auto result = segancha(M, L, maxC, &fixed, quiet);
   PyObj lab = PyObj(PyList_New(0));
   for (const auto &c : result.lab)
     PyList_Append(lab.ptr, PyObj(Py_BuildValue("(ddd)", c.l, c.a, c.b)).ptr);
@@ -171,8 +171,8 @@ static PyObject *pymaxChroma(PyObject *self, PyObject *args, PyObject *kw) {
 }
 
 static PyMethodDef methods[] = {
-    {"perception", (PyCFunction)pyperception, METH_VARARGS | METH_KEYWORDS,
-     "perception colors anchored by N colors\n"
+    {"segancha", (PyCFunction)pysegancha, METH_VARARGS | METH_KEYWORDS,
+     "segancha colors anchored by N colors\n"
      "--------------------------------------\n"
      "\n"
      "@param M number of colors\n"
@@ -222,7 +222,7 @@ static PyMethodDef methods[] = {
     {nullptr, nullptr, 0, nullptr}};
 
 static struct PyModuleDef module = {
-    PyModuleDef_HEAD_INIT, "perception",
-    "Python interface for perception colors library", -1, methods};
+    PyModuleDef_HEAD_INIT, "segancha",
+    "Python interface for segancha colors library", -1, methods};
 
 PyMODINIT_FUNC PyInit_native(void) { return PyModule_Create(&module); }
\ No newline at end of file
diff --git a/test/testfitness2.cpp b/test/testfitness2.cpp
index 7c3ab5c..a7e893e 100644
--- a/test/testfitness2.cpp
+++ b/test/testfitness2.cpp
@@ -16,7 +16,7 @@ int main(int argc, char *argv[]) {
   const size_t M = 7;
   const std::vector<color::LAB> fixed{{0, 0, 0}, {90, 0, 0}};
   for (const auto L : std::vector<double>{-1, 30, 60}) {
-    const auto result = perception(M, L, 100, &fixed);
+    const auto result = segancha(M, L, 100, &fixed);
     std::cout << result << std::endl;
   }
 
diff --git a/test/testilluminantd.py b/test/testilluminantd.py
index 75a05a8..aa5193a 100644
--- a/test/testilluminantd.py
+++ b/test/testilluminantd.py
@@ -1,6 +1,6 @@
 #! /usr/bin/env python3
 
-from perception import IlluminantD
+from segancha import IlluminantD
 
 print(IlluminantD(5000, 100))
 print(IlluminantD(6500, 100))
diff --git a/test/testmaxchroma.py b/test/testmaxchroma.py
index 0b52a78..bcff6c7 100644
--- a/test/testmaxchroma.py
+++ b/test/testmaxchroma.py
@@ -1,5 +1,5 @@
 #! /usr/bin/env python3
 
-from perception import maxChroma
+from segancha import maxChroma
 
 print(maxChroma((50, 0, 0)))
diff --git a/test/testperception.py b/test/testperception.py
deleted file mode 100644
index 07da10c..0000000
--- a/test/testperception.py
+++ /dev/null
@@ -1,6 +0,0 @@
-#! /usr/bin/env python3
-
-from perception import perception
-
-perception(7, L=90)
-perception(7, L=80)
\ No newline at end of file
diff --git a/test/testsegancha.py b/test/testsegancha.py
new file mode 100644
index 0000000..11efc40
--- /dev/null
+++ b/test/testsegancha.py
@@ -0,0 +1,6 @@
+#! /usr/bin/env python3
+
+from segancha import segancha
+
+segancha(7, L=90)
+segancha(7, L=80)
\ No newline at end of file