Underscore not displayed as symbol for objects

[Harirarn]

If I use map.defineObject and set the symbol as underscore, then it doesn't get displayed on the screen. However the object is there and performs its functions. I used

    map.defineObject('shield', {
        'symbol': '_',
        'color': '#888',
        'impassable': true,
    });

Replacing the underscore with something else works properly. I am using Chrome.

However I found that when the screen scrolls at the beginning of an execution, the underscores are visible.

[AlexNisnevich]

This seems to be a browser-specific issue - in some browsers, the bottommost pixel of each tile seems to be overlapped by the tile below it and thus not shown.

What browser are you on?

[Harirarn]

My browser is chrome. I just saw that bottom-left corner pixel is visible. So Underscores are looking like tiny dots.