Fix #57282: icon color mismatch on download button in public share#59175
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rodrigocorreiaist wants to merge 1 commit intonextcloud:masterfrom
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Fix #57282: icon color mismatch on download button in public share#59175rodrigocorreiaist wants to merge 1 commit intonextcloud:masterfrom
rodrigocorreiaist wants to merge 1 commit intonextcloud:masterfrom
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… share The download button icon on the public share page always appeared in the opposite color of the button text. The root cause was the wrong CSS variable for the filter applied to the icon. Background-image icons are dark (black) by default. In light mode, the icon must be inverted to white when the primary color is dark, which requires --primary-invert-if-dark. The code was incorrectly using --primary-invert-if-bright, inverting in the wrong direction. In dark mode, icons.css swaps the icon variables so that --icon-download-dark resolves to the white SVG. The filter logic must be reversed: --primary-invert-if-bright is needed to invert the white icon to black when the primary color is bright. Fix by using --primary-invert-if-dark in light mode and --primary-invert-if-bright in dark mode, handling both the prefers-color-scheme media query and the Nextcloud data-themes attribute for explicit theme selection. Signed-off-by: Rodrigo Mendes Correia <rodrigo.mendes.correia@tecnico.ulisboa.pt>
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Summary
Fixes #57282
The download button icon on the public share page always appeared in the opposite color of the button text.
Root cause
The icon uses a CSS background-image (
.icon-download) which is dark (black) by default. The filtervar(--primary-invert-if-bright)was applied to it, but this variable inverts the icon in the wrong direction:--primary-invert-if-bright=no→ icon stays black, but text is white → mismatch ❌--primary-invert-if-bright=invert(100%)→ icon becomes white, but text is black → mismatch ❌Fix
In light mode, the correct variable is
--primary-invert-if-dark, which inverts the dark icon to white when the primary color is dark (matching the white text).In dark mode,
icons.cssswaps the icon CSS variables so that--icon-download-darkresolves to the white SVG. This means the filter logic must be reversed:--primary-invert-if-brightcorrectly inverts the white icon to black when the primary color is bright (matching the black text).Both the
prefers-color-scheme: darkmedia query and the Nextclouddata-themesattribute (used for explicit theme selection in Settings) are handled.