Soft theme fix (#4070)

* fix

* fix

---------

Co-authored-by: Abubakar Abid <abubakar@huggingface.co>

CHANGELOG.md

@@ -6,7 +6,7 @@
 
 ## Bug Fixes:
 
-No changes to highlight.
+- Soft theme label color fix by [@aliabid94](https://github.com/aliabid94) in [PR 4070](https://github.com/gradio-app/gradio/pull/4070) 
 
 ## Documentation Changes:
 

gradio/themes/soft.py

@@ -61,7 +61,7 @@ def __init__(
             block_label_text_size="*text_md",
             block_label_text_weight="600",
             block_label_text_color="*primary_500",
-            block_label_text_color_dark="*white",
+            block_label_text_color_dark="white",
             block_title_radius="*block_label_radius",
             block_title_padding="*block_label_padding",
             block_title_background_fill="*block_label_background_fill",