Planning: Choosing colouring technique

I have filled the table with a selection of various greys and have applied different techniques to see which of those would be best suited for my game.

The colours used here won't necessarily be the colours actually used, such as the blue tint or the grey table, but are used as an example.

They are the following.

Type	Result	Description
None		The outlines are still there, but colour fills will only be applied to the objects. This technique could also work with black lines too.
Darker Lines		Here the lines would be a slightly darker than the fill inside. This would create a rather nice effect rather than the lines being a single colour.
No Lines		When removing the lines completely, it really accentuates the 3Dness of the room. I am unsure as to whether this would be a good thing for a Room Escape game.
Tint		Here, I have applied a blue tint of 50%. The purpose of the tint, especially when used on top of shades of grey, was to make everything look blue. Instead, the grey still looks grey and hasn't left an effect I would have liked.
Alpha		When applying an alpha to the greys of the table, it has left the coloured table with a result I am more happy with. The only problem with this is that it has left the contents behind the table visible.

So far, my favourite has been the "No Lines", this is because it helps to take the Flash cartoon away from a cartoony look leaving it looking much more professional. I would however imagine that by having no lines it can be hard in some situations be able to distinguish the difference between two items if they are the same colour and next to each other. To fix this, item colours would need to be made sure that they are of different colours.