add Themes to README

.github/workflows/release.yml

@@ -2,7 +2,7 @@ name: Release
 
 on:
   release:
-    types: [created, published]
+    types: [published]
   push:
     tags:
       - 'v*.*.*'

README.md

@@ -58,6 +58,16 @@ Without passing a subcommand (start/stop) a GUI will be launched, otherwise a CL
 
 Just enter the filename and click *Start Recording*.
 
+#### Themes
+
+Load the GUI with different themes:
+
+```console
+simple-recorder --theme="Light Purple"
+```
+
+Available themes: Light Purple, Neutral Blue, Reds, Sandy Beach, Kayak, Light Blue 2, Dark Teal1
+
 ### CLI
 
 ```shell