fyne_demo crash after selecting custom Theme and table

[lMaxMadl]

Describe the bug:

Fyne_demo crash after selecting custom theme on advanced and enter on Table

To Reproduce:

Steps to reproduce the behaviour:
open fyne_demo
go to advanced
select custom theme
open collection tree
select table (when custome theme on)

Example code:

fyne_demo code

Device (please complete the following information):

• OS: windows 10
• Go version: 1.16
• Fyne version: 2

[andydotxyz]

I cannot replicate unfortunately. Can you please provide the stack trace?

[lMaxMadl]

Describe the bug:

@andydotxyz better explain

To Reproduce:

open fyne_demo
go to advanced
select custom theme
open collection tree(nodes/leafs not open it then tree watch screenshots gifs)
select table (when custome theme on)
see error

panic: runtime error: index out of range [3] with length 3

goroutine 36 [running]:
fyne.io/fyne/v2/widget.(*tableRenderer).moveIndicators(0xc0001ea1c0)
        C:/Users/%USERPROFILE%/go/pkg/mod/fyne.io/fyne/v2@v2.0.0/widget/table.go:350 +0xc50
fyne.io/fyne/v2/widget.(*tableRenderer).Layout(0xc0001ea1c0, 0x438f800043c90000)
        C:/Users/%USERPROFILE%/go/pkg/mod/fyne.io/fyne/v2@v2.0.0/widget/table.go:240 +0x36
fyne.io/fyne/v2/widget.(*BaseWidget).Resize(0xc0006fa8c0, 0x438f800043c90000)
        C:/Users/%USERPROFILE%/go/pkg/mod/fyne.io/fyne/v2@v2.0.0/widget/widget.go:62 +0x124
fyne.io/fyne/v2/layout.(*maxLayout).Layout(0x16cf7b0, 0xc00039f0d0, 0x1, 0x1, 0x438f800043c90000)
        C:/Users/%USERPROFILE%/go/pkg/mod/fyne.io/fyne/v2@v2.0.0/layout/maxlayout.go:22 +0x8b
fyne.io/fyne/v2.(*Container).layout(...)
        C:/Users/%USERPROFILE%/go/pkg/mod/fyne.io/fyne/v2@v2.0.0/container.go:167
fyne.io/fyne/v2.(*Container).Refresh(0xc0003ca080)
        C:/Users/%USERPROFILE%/go/pkg/mod/fyne.io/fyne/v2@v2.0.0/container.go:128 +0x14c
main.main.func13(0x13f121b, 0x5, 0x140d835, 0x2d, 0x1419590)
        C:/Users/%USERPROFILE%/Desktop/exgo/fyne demo/main.go:112 +0x197
main.makeNav.func5(0x13f1a27, 0x5)
        C:/Users/%USERPROFILE%/Desktop/exgo/fyne demo/main.go:154 +0x17d
fyne.io/fyne/v2/widget.(*Tree).Select(0xc0000b0b60, 0x13f1a27, 0x5)
        C:/Users/%USERPROFILE%/go/pkg/mod/fyne.io/fyne/v2@v2.0.0/widget/tree.go:224 +0x14f
fyne.io/fyne/v2/widget.(*treeNode).Tapped(0xc0002bd4d0, 0xc0013bdb40)
        C:/Users/%USERPROFILE%/go/pkg/mod/fyne.io/fyne/v2@v2.0.0/widget/tree.go:625 +0x48
fyne.io/fyne/v2/internal/driver/glfw.(*window).mouseClicked.func7()
        C:/Users/%USERPROFILE%/go/pkg/mod/fyne.io/fyne/v2@v2.0.0/internal/driver/glfw/window.go:791 +0x3f
fyne.io/fyne/v2/internal/driver/glfw.(*window).runEventQueue(0xc0003c4000)
        C:/Users/%USERPROFILE%/go/pkg/mod/fyne.io/fyne/v2@v2.0.0/internal/driver/glfw/window.go:1242 +0x83
created by fyne.io/fyne/v2/internal/driver/glfw.(*gLDriver).createWindow.func1
        C:/Users/%USERPROFILE%/go/pkg/mod/fyne.io/fyne/v2@v2.0.0/internal/driver/glfw/window.go:1266 +0x10d
exit status 2

Screenshots:

bug way :

way don't appear bug :

Device (please complete the following information):

• OS: windows
• Version: 10
• **Go version:**1.16
• Fyne version: 2

[andydotxyz]

Many thanks for this information

[andydotxyz]

Fixed on develop and will be in v2.0.1