Updated Scribble to 5.4.6

Updated the version of Scribble (5.4.0 to 5.4.6). This doesn’t change much, but if you encountered any bug fixes with the text rendering they may have been fixed.

Among other things the update has added support for pages of text, but I haven’t added support for them here. If people want that sort of thing I’ll work it in, but for the purposes of being a preview tool it’s probably not that important.

Also, changing the default text color is now reflected in the preview instantly. Apparently I never thought to do that before?