diff --git a/README.md b/README.md
index 545c0a7..76578cb 100644
--- a/README.md
+++ b/README.md
@@ -55,13 +55,4 @@ Zenodo (https://zenodo.org/record/5517607).
 
 ## License
 
-This project is licensed under the MIT License - for details please refer to the [LICENSE](./LICENSE) file.
-
-=======
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+This project is licensed under the MIT License - for details please refer to the [LICENSE](./LICENSE) file.
\ No newline at end of file
diff --git a/app/static/js/controller.js b/app/static/js/controller.js
index b274a37..70c6ca5 100644
--- a/app/static/js/controller.js
+++ b/app/static/js/controller.js
@@ -393,12 +393,12 @@ function main() {
     function runFullKDEviaPOST() {
         $(document).on({
             ajaxStart: function(){
-                $("#vf-norm-load").show();
-                $("#vf-norm-preview").hide(); 
+                document.getElementById("vf-norm-load").style.display='block';
+                document.getElementById("vf-norm-preview").style.display='none'; 
             },
             ajaxStop: function(){ 
-                $("#vf-norm-load").hide();
-                $("#vf-norm-preview").show();
+                document.getElementById("vf-norm-load").style.display='none';
+                document.getElementById("vf-norm-preview").style.display='block';
             }    
         });
         payload = JSON.stringify({
@@ -451,12 +451,12 @@ function main() {
         $(document).on({
             ajaxStart: function(){
                 //console.log(arrSigMat);
-                $("celltypes-load").show();
-                $("celltypes-preview").hide(); 
+                document.getElementById("celltypes-load").style.display='block';
+                document.getElementById("celltypes-preview").style.display='none';
             },
             ajaxStop: function(){ 
-                $("celltypes-load").hide();
-                $("celltypes-preview").show();
+                document.getElementById("celltypes-load").style.display='none';
+                document.getElementById("celltypes-preview").style.display='block';
             }    
         });
         
diff --git a/app/templates/indexMain.html b/app/templates/indexMain.html
index 9998ad6..cb6e9ef 100644
--- a/app/templates/indexMain.html
+++ b/app/templates/indexMain.html
@@ -492,7 +492,7 @@ <h3>Step 2: Cell Assignments</h3>
 
             </p>
             <div class="d-flex, flex-row, container-fluid">
-                <div id="celltypes-load" class="row container-fluid vf-norm-load"></div>
+                <div id="celltypes-load" class="row container-fluid vf-norm-load" style="vertical-align: middle;"></div>
                 <div id="celltypes-preview" class="d-flex flex-column container-fluid"
                     style="width: 80vw; height: 50vw;">
                     <div id="hoverinfo" class="d-flex align-self-start"></div>
diff --git a/app/views.py b/app/views.py
index 661c7e0..d7c9560 100644
--- a/app/views.py
+++ b/app/views.py
@@ -5,7 +5,7 @@
 import json
 import pathlib
 from numba import jit, float64, int32, char, prange
-import tensorflow as tf
+