Hey @furnox, thank you for the great feedback! Most of the things you raised are definitely things we are aware of and are tracking internally. Let me go through them:
It's placing go to anything front and central and grouping buttons together in a way that they are easy to find. It's primarily intended for new users to make Komodo more intuitive to use. If you're a long time user and you're comfortable with the classic layout then the new layout has no added value for you besides maybe being more visually pleasing (subjective). Rest assured the classic layout will continue to be supported.
It's solving the problem of "there are a whole bunch of buttons scattered randomly in one continuous line". As said the way the buttons are organized is giving them specific groups. Whereas the leftside shows you buttons relative to buffer actions the right side gives you buttons relative to the UI and automation.
As for being able to move them again - this is planned. With the large amount of changes to the UI in 10.0 the ability to move them was temporarily removed as it posed a significant challenge that was at that time not worth the time.
They use the icon colors, note that in 10.0 the icon color pref was bugged, in 10.1 this should be fixed. As for creating your own, I apologize for this not being obvious. We will be blogging about this soon and providing thorough documentation.
I addressed most of these points already, but as for why "other tools are banished to the bottom of the side toolbar?", this again goes back to grouping buttons in a meaningful way. These buttons represent tools that open in their own dialog and are accessed with a single click. Essentially tools that live inside of Komodo and integrate with it, but provide a whole new layer of functionality that could almost live on its own (conceptually).
This is unfortunately a limitation in the version of Mozilla we use, it will get better when we update our dependencies in the future.
I've not seen these myself, appreciate if you could log a bug on this with your findings so far.
Great advice, I will do this.
The tutorials are mainly targeted at enterprises and educators. It doesn't hurt those that have no need for them, although it does also give us the opportunity to educate newcomers to Komodo and hopefully convert more users to Komodo users, which in the long runs helps you too.
That shouldn't be the case. What OS are you using?
Always great to hear some positive with the constructive feedback on the negative, thank you for letting us know