diff --git a/README.md b/README.md
index a7fc350..b7e1215 100644
--- a/README.md
+++ b/README.md
@@ -2,13 +2,27 @@
 Material You color algorithms for python (crossplatform)!
 
 
+## Install
+
+You can easily install it from pip by executing:
+```console
+pip3 install materialyoucolor --upgrade
+```
+Prebuilt binaries are avaliable for `linux`, `windows` and `macos`.
+
+
 ## Build and install
 
-Install [abseil](https://abseil.io/) using system package manager. Currently it only supports MacOs and Linux, other platform support is comming soon.
+It is built in reference with offical [typescript implementation](https://github.com/material-foundation/material-color-utilities/tree/main/typescript) but it's color quantization part is based on [c++ implementation](https://github.com/material-foundation/material-color-utilities/tree/main/cpp) thanks to [pybind](https://github.com/pybind).
 
 ```console
 # Install pybind 11 
 pip3 install pybind11
-pip3 install https://github.com/T-Dynamos/materialyoucolor-pyhton/archive/main.zip
+pip3 install https://github.com/T-Dynamos/materialyoucolor-pyhton/archive/develop.zip
 
 ```
+
+## FAQ
+    
+    1. How it is different from `avanisubbiah/material-color-utilities`?
+        - See https://github.com/T-Dynamos/materialyoucolor-pyhton/issues/3
diff --git a/materialyoucolor/utils/theme_utils.py b/materialyoucolor/utils/theme_utils.py
index 5d852b5..a58489e 100644
--- a/materialyoucolor/utils/theme_utils.py
+++ b/materialyoucolor/utils/theme_utils.py
@@ -46,7 +46,7 @@ def custom_color(custom_color, source_color=None, blend=False):
     }
 
 
-def theme_from_source_color(source: int, custom_colors: list[CustomColor]) -> Theme:
+def theme_from_source_color(source: int, custom_colors: list[int]) -> Theme:
     palette = CorePalette.of(source)
     return Theme(
         source,