Reword pargraph about overriding with custom chart configs

Author: snehankekre

content/library/api/charts/altair_chart.md

@@ -41,7 +41,9 @@ Click the tabs in the interactive app below to see the charts with the Streamlit
 
 <Cloud src="https://doc-altair-chart.streamlit.app/?embed=true" height="500" />
 
-If you're wondering if your own customizations will still be taken into account, don't worry! Any changes you make to chart configurations will be accounted for and reflected in the app. Here's an example of an Altair chart where manual color passing is done and reflected:
+If you're wondering if your own customizations will still be taken into account, don't worry! You can still make changes to your chart configurations. In other words, although we now enable the Streamlit theme by default, you can overwrite it with custom colors or fonts. For example, if you want a chart line to be green instead of the default red, you can do it!
+
+Here's an example of an Altair chart where manual color passing is done and reflected:
 
 <Collapse title="See the code">
 

content/library/api/charts/plotly_chart.md

@@ -45,7 +45,9 @@ Click the tabs in the interactive app below to see the charts with the Streamlit
 
 <Cloud src="https://doc-plotly-chart-theme.streamlit.app/?embed=true" height="525" />
 
-If you're wondering if your own customizations will still be taken into account, don't worry! Any changes you make to chart configurations will be accounted for and reflected in the app. Here's an example of an Plotly chart where a custom color scale is defined and reflected:
+If you're wondering if your own customizations will still be taken into account, don't worry! You can still make changes to your chart configurations. In other words, although we now enable the Streamlit theme by default, you can overwrite it with custom colors or fonts. For example, if you want a chart line to be green instead of the default red, you can do it!
+
+Here's an example of an Plotly chart where a custom color scale is defined and reflected:
 
 ```python
 import plotly.express as px

content/library/api/charts/vega_lite_chart.md

@@ -54,4 +54,4 @@ Click the tabs in the interactive app below to see the charts with the Streamlit
 
 <Cloud src="https://doc-vega-lite-theme.streamlit.app/?embed=true" height="500" />
 
-If you're wondering if your own customizations will still be taken into account, don't worry! Any changes you make to chart configurations will be accounted for and reflected in the app.
+If you're wondering if your own customizations will still be taken into account, don't worry! You can still make changes to your chart configurations. In other words, although we now enable the Streamlit theme by default, you can overwrite it with custom colors or fonts. For example, if you want a chart line to be green instead of the default red, you can do it!