- #21627 Filter for custom-background CSS selector [punt, use case is rare]
- #29949 Customizer collapsed mode is barely usable [punt, mobile first]
- #28650 Allow Customizer elements (controls, sections, and panels) to be deep-linked [needs-patch, margin bug]
- #28542 Navigating within Customizer preview should update parent document title [commit 28542.2.diff]
- #28504 Icons for Customizer Sections [punt, mobile first]
- #28032 Headers, Backgrounds, and Widgets in the Customizer are not discoverable from their separate admin screens.
- #27355 Customizer: Add framework for partial preview refreshes [punt ?]
- #25571 Remove Custom Header Page in favor of the Customizer [see #28032]
- #25569 Remove the Custom Background Screen in Favor of the Customizer [see #28032]
- #21483 Refactor Customizer Upload, Image, and Background Image controls to leverage the media library/modal [eric does docs, after that commit]
- #29572 Customizer: add a framework for rendering controls from JS templates [commit 29572.5.diff, new function needed?]
- #28709 Improve/introduce Customizer JS models for Controls, Sections, and Panels[needs-patch, wp.customize.utils]
- #30251 Customizer inconsistent contextual behavior [commit 30251.diff]
- #30236 Trigger widget-added event in Customizer when initializing [commit 30236.diff, remove addWidget()]
- #30235 Improve ability to filter active state for widget area Customizer sections [commit 30235.diff]
- #23225 Customizer is Incompatible with jQuery UI Tabs. (wth)
(#29289, #30182)
- #30277 Split up Customizer JS into separate files and remove self-booting jQuery.ready call (after beta)