Grid view for rooms should be persistent

[ace-dent]

The option to show/hide a grid in the room editor, does not persist between sessions. e.g. Refresh the browser tab to see the setting reset. This does work for the tile editor.

May be a regression from issue #97 ?

[le-doux]

thanks for the bug report! can’t remember if I implemented this for rooms or not but I definitely should :)

[le-doux]

this will be in the next update!