The sketch about SOLID principles should be in read only mode, so it isn’t possible to change it.

But I guess you’re talking about the drawing on an empty canvas, aren’t you? In this case you may choose the tools (i.e. Pen, Text, Rectangle, Ellipse, etc) by clicking on the central black button on the bottom of the page. This is for the mobile. For the desktop all of the tools should be immediately visible for selection without two clicks.

Oh I didn't realize you were sharing just the sketch. I thought it was a demo for an app. Thanks

Is it also a Firefox for you? Could you please specify a device?

Sorry, don't want to make HN comments to be a GitHub issue tracker, but this info will help.

F.F 91.12.0 ESR, No-Script & U-Block as plugins. JS white-listed for all domains on your page (except Google Tag-Manager). HTH.

Btw, is it possible that you open the app in Firefox Private browsing mode?

It looks like F.F. doesn't support IndexedDB in private mode at all: https://bugzilla.mozilla.org/show_bug.cgi?id=781982, and IndexedDB is the main data storage for okso.app.

If this is the case I'll think about some fallbacks, maybe to LocalStorage, to make the app work in such cases as well...

Thanks!

Thanks for notifying about the issue. Yes, I see from the logs that a number of users are affected by this. Working on the fix