# UHeader `mode="slideover"` + `toggle-side="left"` + `:menu="{ side: 'left' }"` causes two bugs:
How can I switch to dark mode of element-ui by building different css for themes?
stalepending triage2.x
theme-color meta tags are incorrectly deduped
pending triageupstream
custom prefix not working when set with UHeader
bugv3nuxt/ui-protriage