Update png/gif icons

[Klap-in]

/lib/images/admin/

(Were old icons used on the admin page, but these are already replaced by svg icons included in the respectively plugin)

/lib/images/

(blank.gif)
=>
=>
=>
=> (or )
=> (done)
=>
=> (done)
=>
=>
=> ( )
=>
=> (done)
=>
=> ( ) (used in media popup, show original image)
=>
=>
=>
=>
=> no icon with image with link...
=>
=>
=>
=>
=>
=>
=>
=> (used in media popup) (already available: lib/images/menu/folder-multiple-image.svg)
=>
=>
=> () (used in linkwizard)
=>
=>
=>
=> resize handle columns media manager, not found. Build self svg, todo
=>
=>
=>
=> (used in media popup)
=> (done)
=> (used in linkwizard, up to parent symbol)
=>

/lib/tpl/dokuwiki/images

=> (available)
=> self build, todo
=> self build, todo
=> self build, todo
=> self build, todo
=> self build, todo
=> self build, todo
=>
=> there is already svg, seems not used?
=>
=>
=>
=> old, already svg
pagetools-sprite.png => (and subfolder /pagetools/, both not used anymore)

further:
favicon.ico

lib/plugins/acl/pix

=>
=> ( )
=> (see also above)
=> (see also above)

lib/plugins/config/images

=> (see above)
=> ( )
=>

lib/plugins/extension/images

=> ()
=>
=> ()
=>
=>
=>
=> single pixel image
=> build self, todo
=>
=> build self, todo
=> (see also above)
also: icons.xcf

lib/plugins/usermanager/images

=> (see also above)

A couple of these images are used by plugins, but it would be nice to have more uniform icon usage. So it might be worth to include svg icons with DokuWiki instead of letting plugins search there own.

Suggestions from Material Design Icons are welcome (https://pictogrammers.com/library/mdi/).

Further also toolbar uses old icons. Probably #1204 (reference) contributions of Andi to MDI closes there the gap already significantly.

• https://www.dokuwiki.org/devel:svg

[Klap-in]

For most icons now suggestions are added above from MDI. The sizes are sometimes a bit small. Needs probably quite often specific css for correct size. Also some colors are needed.

Any feedback on the suggestions?

[splitbrain]

Thanks for the list. The picks are a good start, we can always discuss/change certain choices in their respective PRs.

I thinks starting with the non-toolbar icons is easiest.

The toolbar is on my mental todo list of things that are in dire need of refactoring. The way it is currently built (especially when using wanting to execute custom code) is really not how modern JavaScript should work (with the need of declaring global methods with a specific name)... A refactoring is not strictly necessary for simply switching to SVG icons but might be beneficial. Regarding colors, I think color grouping toolbar icons might be helpful?