ShowTestWindow: fixed "undo" button of custom rendering applet + default size
ShowTestWindow: fixed "undo" button of custom rendering applet + default size

wangshijin/imgui,ocornut/imgui,Extrawurst/imgui,xunmengfeng/imgui,redblobgames/imgui,ghassanpl/imgui,zho7611/imgui,cmaughan/imgui,dougbinks/imgui,twigletguy/imgui,mikesart/imgui,cmaughan/imgui,ghassanpl/imgui,ggtucker/imgui,tom-seddon/imgui,zho7611/imgui,andresv/imgui,bkaradzic/imgui,rmoorman/imgui,sakishum/imgui,andresv/imgui,Pagghiu/imgui,twigletguy/imgui,benoitjacquier/imgui,xythobuz/imgui,aimotive/imgui-glfw,Extrawurst/imgui,luiseduardohdbackup/imgui,bagobor/imgui,burningreggae/imgui,ocornut/imgui,thevaber/imgui,Flix01/imgui,thennequin/imgui,nProtect/imgui,Flix01/imgui,benoitjacquier/imgui,dougbinks/imgui,elect86/imgui,kylawl/imgui,wasikuss/imgui,shaggytwodope/imgui,bkaradzic/imgui,thennequin/imgui,wangshijin/imgui,tpoechtrager/imgui,ocornut/imgui,thevaber/imgui,ggtucker/imgui,ggtucker/imgui,emoon/imgui,neshume/imgui,redblobgames/imgui,tom-seddon/imgui,mikesart/imgui,sakishum/imgui,emoon/imgui,wasikuss/imgui,rxantos/imgui,wflohry/imgui-addons,rxantos/imgui,gamedeff/imgui,GHF/imgui,nmlgc/imgui,Psybrus/imgui,gamedeff/imgui,rmoorman/imgui,bkaradzic/imgui,Psybrus/imgui,usagi/imguixx,shaggytwodope/imgui,xunmengfeng/imgui,Pagghiu/imgui,usagi/imguixx,cmaughan/imgui,nProtect/imgui,luiseduardohdbackup/imgui,burningreggae/imgui,kylawl/imgui,seanmiddleditch/imgui,elect86/imgui,tpoechtrager/imgui,neshume/imgui,nmlgc/imgui,xythobuz/imgui,seanmiddleditch/imgui,bagobor/imgui,cmaughan/imgui,nProtect/imgui,gyakoo/imgui,aimotive/imgui-glfw,gyakoo/imgui,GHF/imgui,wflohry/imgui-addons,Flix01/imgui