For now, this can only support up to 2 images: one preview for the whole map and one in-game screenshots or so. Also, it has a pre-defined color. Maybe on the next versions, I'll be adding some more supports on user-customized color and more than 2 images for the screen shots.
EDIT
As for the present version, you can edit the colors using the notepad by editing BBCode for text colors.
EDIT
Actually, you can add as many screenshots as you can in both text fields; just add these codes in between urls: "[/img]" REMEMBER: [color=lime][b]in between URLs[/b][/color] If you are not sure, just add one for each slot.
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Thanks to Bru for his [url=http://www.hiveworkshop.com/forums/2488523-post11.html]suggestion[/url].
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As far as I know, creating nice description for your melee map is very much related to Warcraft 3 as far as the first rule of the [url=http://www.hiveworkshop.com/forums/rules-information-710/tool-submission-rules-230363/]Tool Submission Rule[/url] is applied. And as far as this tool is concerned, I made this tool entirely from scratch. And as far as the [url=http://www.hiveworkshop.com/forums/rules-information-710/map-submission-rules-228244/]Map Submission Rules[/url] is concerned, it's first rule is to have good description for hive and any uploaded maps violating any rules stated is subject for rejection. Now, isn't this tool related to warcraft 3?