| Purpose | Path (under KOReader settings) | Formats |
|---|---|---|
| Loose / individual icons | koreader/settings/simpleui/sui_icons/ | .svg (recommended) or .png |
| Icon packs (folders or installed ZIPs) | koreader/settings/simpleui/sui_icons/packs/ | Folder with icons + optional pack.lua, or a .zip |
You can also pick any image on the device with Browse… in the SimpleUI menus. Those files do not have to sit under sui_icons/; the folders above are only the default, convenient location.
Platform base paths (same as the parent page):
After dropping files into these folders, open the matching SimpleUI settings screen or restart KOReader so packs are listed. Browse… applies immediately.
In the Quick Actions editor, open an action and choose its icon:
Built-in actions ship with defaults under the plugin’s icons/ folder (e.g. library.svg, power.svg).
Settings → Style → Icons → System icons lets you override fixed UI positions: titlebar buttons, browse modes, pagination, navpager, collections back, default QA type icons, folder-cover empty state, and touch-menu tabs.
Use Reset all system icons to clear every slot override at once.