Gravatar Size Via Theme Functions?

Quite simple, actually:

wp_list_comments( 'avatar_size=80' );

Just change avatar_size=80 to whatever is appropriate.

Here’s a bit more information on customizing Gravatars in WordPress.

Related Posts:

  1. Custom Gravatar not working
  2. I want to display author gravatar on posts. How to do this?
  3. How to change Gravatar size when using comments_template
  4. Gravatar not showing when calling users details
  5. Which core file is responsible for gravatars?
  6. Fetching Gravatar
  7. Gravatar always shows default image
  8. how to separate gravatar picture and new user picture
  9. How to change the gravatar image from front end?
  10. Building Gravatar Code
  11. How can I changing or replace user’s avatar without plugins?
  12. Removing Gravatar.com support for WordPress and Simple Local Avatars
  13. Replace Gravatar with uploaded images?
  14. Custom user avatar in the WordPress users listing
  15. If Else Gravatar Author Picture
  16. Upload gravatar in WP profile?
  17. How to check if gravatar of user is the default’s one?
  18. How do I add a custom HTML attribute to get_avatar?
  19. Setting different width and height for gravatar
  20. Use local image for default avatar
  21. Filtering the default avatar list
  22. Wrong gravatar showing up?
  23. Add gravatar to author list
  24. Alternative default avatar generator?
  25. How to get gravatar url alone
  26. Replace default avatar
  27. Listing all users by their avatars in wordpress
  28. How to replace any occurence of Gravatars with a local placeholder image?
  29. How to output nothing instead of default avatar?
  30. get the avatar url instead of an html img tag when using get_avatar?
  31. get_user_meta Short Profile Section
  32. Changing default Buddypress avatar affects all site avatars (because gravatar)
  33. Replace Gravatar with img URL for avatars
  34. How to Add a Random Custom Gravatar in the WordPress Comments?
  35. Get users only if Gravatar is specified
  36. Assign a random avatar to every user?
  37. Replace comment avatars and links at the same time
  38. get_avatar() default image not working as of wp 3.5 [closed]
  39. Cannot get local avatars to show [closed]
  40. Use Gravatar as fallback image if no local image is not found
  41. Can I hook into get_avatar to supply a hash instead of an email?
  42. How to change avatar of the comment author using comment ID?
  43. get_avatar won’t show uploaded avatar, only default gravatar
  44. Force users to display default Gravatars
  45. Snippet for own (gr)avatars
  46. WordPress Gravatar filter is removing my custom attributes
  47. In this snippet how do I force the function to use gravatar rated G and fill in the alt for get_avatar()?
  48. Custom avatar image link added to the profile page
  49. Customize Avatar using user meta
  50. custom default avatar showing broken link
  51. Disable Gravatars in WordPress
  52. Remove hovercard for only certian gravatars
  53. Which Function Displays The Post Authors Gravatar
  54. Change the “Default Avatar” admin option via functions.php
  55. How to prevent a specific users’s profile photo (gravatar) from showing on the frontend to other users?
  56. How do I get a post author’s image/avatar via RSS from another blog?
  57. Gravatar – Default IMG
  58. Custom Field Repeating When Using foreach
  59. Gravatar image url is wrong?
  60. How to add custom class to get_avatar()
  61. Avatar picture does not display when using get_avatar
  62. Working with Gravatars within a localhost development area
  63. Adding avatars/gravatar to a WordPress blog
  64. How to get all users that uploaded avatars or have gravatars? [closed]
  65. Simple Local Avatar Plugin
  66. Default Gravatar not showing for pings
  67. Avatar picture is broken
  68. Gender based user avatar
  69. get_avatar filter is not working as per requirement
  70. i1.wp.com url problem (Jetpack not installed)
  71. How to get User Avatar Image with link to Author and User name in Html Title tag?
  72. WordPress User Gravatar images not displaying. Loading default instead
  73. GravatarLocalCache Plugin Broken in WordPress 4.2
  74. WordPress shows admin’s avatar after editing a comment
  75. Show custom default avatar instead of gravatar
  76. Increase Comment Author Gravatar Size On WordPress Default Comment Function
  77. Show author name not the author ID
  78. Adding Gravatar to rss feed
  79. Broken Gravatar images in comments
  80. How to load locally saved author photos based on author ID
  81. How to add avatar to authors list?
  82. How do I add nopin=”nopin” to the default avatar?
  83. Convert User’s Avatar/Gravatar to a jpg or png on the Fly
  84. Adding custom avatar field to comments