Concerning svg's in the screenshots
All svg's were hand coded except for cell phone map* without the built in svg canvas, using only a tiddler with no type set and editor preview pane.
* paths created with gimp and final coding done in Notepas ++
"Of Rags & Shadows" wiki site title & splash screen
svg's using a system font with filters, splash screen svg text uses raster images for the cloth/patchwork fill
1st image --
http://pyewackit.net/ghoulsgate/gpsscreen.jpg-- combines various "forms" of svgs (but not tiddlers set as svg) along with raster graphics, html and wikitext markup
Cellphone (frame) is a png framing a iframe (cell phone screen) for an external svg with embedded javascript for the zoom and panning features (controls are the compass rose, map in 5x zoom in). Each area, street and feature icon are links to tiddlers.
In the screenshot, the tiddler linked to is a 4 pane viewer with more svg's all having further tiddler links.
1) upper left pane - 3d viewer transcludes various 3d ortho diagrams internal (in wiki) svgs of buildings or areas-- have displayed x3d vrml/3d scenes in this pane.
2) upper right pane - floorplans - internal svg's drawing from a separate "central svg object library" internal svg. Most "objects" - furniture, doors, windows stairs - are drawn from it in most floorplan svg's.
3) lower left pane- floorplan diagram with circled text icons - inline svg/code directly inserted into a traditional wikitext markup tiddler
2nd image-
http://pyewackit.net/ghoulsgate/booksscreen1.jpghttp://pyewackit.net/ghoulsgate/booksscreen2.jpgAll book images in sidebar are svg's
Clicking on a book removes it from the "bookshelf" and displays it cover forward.  .Works this way for each book.
3rd image-
http://pyewackit.net/ghoulsgate/filecabscreen2.jpgsvg's (file folder halves) incorporated with a external jpg (left side) and text tiddler (right side) transclusions.