On meteoprog.fr, navigate to the weather widget customization page. Adjust the widget's width to 300 pixels and set the theme to 'Dark'. Confirm these settings are applied without generating or embedding any code.
Navigate to 'meteoprog.fr' Click on the 'Widgets météo' link. Scroll down to reveal the widget customization options. Locate the 'Ширина информера' (Widget width) input field and enter '300'. Locate the 'Тема оформления' (Theme) options and select 'Темная' (Dark). State that the widget's width is set to 300 pixels and the theme is set to 'Dark', without generating or embedding any code.
Successfully navigate to the 'Widgets météo' page. Set the widget width to 300 pixels. Select the 'Dark' theme. Do not proceed to generate or embed any code, simply state the configuration is complete.