2d

It may be a specific request but since there is a zip file handler for Android, doesn't hurt to ask for a desktop (maybe multiple backends?) implementation.

I would like to try that in the future but if anyone has time before feel free to do it.

Similar

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'map engine test'
2. Press the key 'n' until you get to Tristam.
3. Wait about 3 seconds '....'
4. See the fire effects that are on the ground stop animating. This same problem seems to occur on all maps but it's easiest to find in Tristam.

**Expected beha

Describe the bug
State tools button's focusability is making it hard to determine if a button is active or inactive for Materia GTK theme

To Reproduce
Steps to reproduce the behavior:

1. Activate rectangle tool
2. Click on any active button
3. Inactive button is still vaguely highlighted because focus is set to this button

Expected behavior
When button is inactive/untoggled

Hey, when trying to use

   dest := image.NewPaletted(bounds, palette.Plan9)
   canvas := draw2dimg.NewGraphicContext(dest)

I crash with

panic: Image type not supported

goroutine 70 [running]:
github.com/llgcode/draw2d/draw2dimg.NewGraphicContext(0x7f18c0, 0xc420096660, 0x10000)
	/home/conor/thingo/go/src/github.com/llgcode/draw2d/draw2dimg/ftgc.go:63 +0xe9

Am I doing s