rodolforg

@ice0 sorry to ping you again XD

I didn't finish this PR yet. I'll actually move the last ETL file (i.e. handle header) to synfig-core. Thank you for reviewing it :)

@ice0 here it is. Should I split this PR ('removing' last commit - the that actually moves ETL/_handle.h to synfig-core)?

I believe this is now properly working. TODO: * [ ] move new classes in canvas.h to a proper file? * [ ] add docs to those new classes *...

@yoSachinkr please test it

Hey, @pgilfernandez ! Can you rebase your branch to up-to-date master branch? This PR is getting unrelated stuff here. Then, re-push it to Github. Something like: ```ShellSession git fetch upstream...

> The bug is still reproducible. I will add additional information on how to reproduce it later. Waiting for them :) I couldn't reproduce here :/

I think you should split this PR in two: one adds new icons, other changes current ones. @morevnaproject @ice0

@morevnaproject what about the new and the changed icons? XD

Currently `spacebar` is used to play animation in workspace (as Blender does). This request conflicts with this shortcut, so someone has to decide whether this demand will be met or...