In my case, the button was missing because it was a multisite install. The Add New button appears only when you go to top bar -> My Sites -> Network Admin -> Themes. From there, you can add new themes and enable them for the rest of the network.
Related Posts:
- How to change background color in the Notepad++ text editor?
- How to change or add theme to Android Studio?
- WordPress frameworks and parent themes [closed]
- Opinions and recommendations on the best barebones base theme [closed]
- Remove JSON API links in header html
- Using OOP in themes
- Where can I download WordPress themes from? [closed]
- How can I allow the Editor Role to change Theme Settings?
- What are all the available parameters for query_posts?
- Customizing a WordPress theme without changing it?
- Where can I learn to create my own theme?
- How do I turn off self-closing tags for markup in WordPress (for HTML5, or HTML4, for example)?
- how to add version of style.css in wordpress
- Does WordPress work without a theme?
- What is the role and history of the $content_width global variable?
- Adding admin-ajax.php to the frontend. Good or bad idea?
- How to move the sidebar in TwentyFifteen to the right?
- How to Link External jQuery/Javascript files with WordPress
- Installation failed: Download failed. No working transports found
- What is theme-compat?
- Override parent theme translation on child theme
- WordPress Theme activation hook?
- Can wordpress theme folder name be changed freely and nothing technically happens
- Link to specific Customizer section
- What does exactly GPL license mean for my WordPress theme?
- Am I allowed to license my WordPress theme under the aGPL
- How do I change the header image height in Twenty Seventeen?
- Starter Theme vs Parent Theme? Pros and cons
- How to change the language for the front-end only?
- W3 Total Cache, CDN and theme files [closed]
- Best way to include Bootstrap in WordPress
- How to set thumbnail image for a (child) theme
- Different template of products for specific category. WooCommerce
- Show different theme for admin?
- How can I version the main CSS file?
- what the best way to include images from the template’s images folder?
- Is it OK to remove theme credits from footer? [duplicate]
- Undefined offset: 0 in > […] /wp-includes/capabilities.php on line 1067
- How can I get the title attribute from get_the_post_thumbnail()?
- Dash or underscore in theme folder name?
- How do I add support to my theme for custom menus?
- “Unexpected error” on update requests
- How to prevent plugin, theme installation failures on WordPress?
- How do I white label my self-hosted site created by wordpress?
- Do Child-Themes automatically load the Translation from the Parent-Theme?
- When cropping a header image, retain meta data (i.e. name, description, etc.) from original image?
- Best practices for a Style/CSS based theme options page?
- How to create a new theme from scratch?
- Categorising themes by folders in backend
- Switching themes without losing widgets?
- How to use media upload on theme option page?
- Dynamic template serving, change theme_root using add_filter from current theme
- What theme is good for posting code? [closed]
- WordPress 5 / Gutenberg – theme doesn’t have featured image option showing up
- Custom Taxonomy-specific JavaScript
- How to refresh WordPress Customizer panel upon entering a value
- Set Featured Image for Archive templates
- is_front_page only works in theme file, and does not work in functions.php
- What is meant by __(‘page’,’twentytwelve’)
- How do I add a new string to a .po or .pot file?
- Adding Language Support using .pot and .mo files to a WordPress Theme?
- Difference between stylesheet_directory and template_directory
- Free/Open-Source Theme Frameworks as an Alternate to Thesis? [closed]
- can require “themefolder/includes/widgets.php” in “themefolder/functions.php” yet widgets.php doesn’t run
- Using Multiple Themes in a Single WordPress Site?
- Adding a Template to the Page Attributes Panel for both Posts and Pages?
- How to override the “inc” folder (or any folder) in a theme using child theme?
- How to license my commercial WordPress theme? [closed]
- How to Use WordPress as Static CMS Without Blog Posts
- Any official way to create an admin theme?
- Pre-populating the Page/Post Content Editor with HTML Snippets?
- How do I create my own admin button and theme settings page?
- Is it possible to access Gutenbergs reusable blocks in CPT block templates?
- How do you change the theme location?
- Splitting an Evolving Site into Multiple Sites, or Maintaining as One Site?
- Two instances of WordPress with different URLs and themes
- Is “Featured Content” in Twenty Fourteen done with a plugin, or is it native in WP4.0?
- Looking for a way to load a function after customizer preview refresh complete
- Multiple image logo for theme
- How to see files in directories in “Edit Themes” screen
- How can I use WordPress as a job board ? (but free)
- Editing Links in the Footer of WordPress Themes with Base64 Encrypted Code?
- Add a page outside of the current theme?
- How to create a live demo page for a theme? [closed]
- How to set two different themes on one WordPress? (Desktop vs. Mobile)
- How can I add a set featured image function to a theme that doesn’t already have it built in?
- Moving WordPress.com theme and widget settings to self-hosted site?
- Jquery in Child Theme
- Using WordPress as piecemeal in existing site?
- Changing the visible url path to css & js files
- How to incorporate admin theme in my back-end-plugin
- How do i structure my theme folder to avoid one huge list of files
- Loading template files from a subfolder in my theme?
- Hide Twenty Eleven Theme From Themes Page
- WordPress generating 404 on .mp4 file in theme folder
- What are nulled themes?
- Removing Shortcodes from Child Theme
- Can I Download a Free WordPress Theme, Edit it and Use it?
- Why are my widgets not saving when being added to a sidebar?
- Is it possible to stop a theme activation when a certain plugin is not activated