Logo-list: Remove target equals _blank
Logo list links will open images in a new tab. This is assuming the links are going to external sites. To make Logo-list links open in the same tab, you can modify the code in the template.
How to - Open the Code Editor:
From your list of themes, find the Actions link for the theme you'd like to edit. Then select Edit code. Example draft theme:
Example if you're working from your main live/published theme:
Quick link if the theme is live/published:
Open Code Editor
Open the logo list template file
In the sections folder, open index-logos.liquid:
Find the correct line
In the code area, use the Find feature (Command-F on Mac, Control-F in Windows) and search for (1):
Once you find the right line (2):
Save the file.
Undo the change
Use the Older versions link to rollback to the original if you make a mistake or want to return to previous behaviour.