This program, made by ShadowFlare, lets you easily add colors to text in StarCraft maps. You just have to click on the color that you want, click Copy into clipboard, and paste it where you want the color to be. Check the spoiler below to read the readme.

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  MapColors v1.0 (5.3 KiB, 135 hits)

The StarCraft X-tra Editor (SCXE) is a set of StarEdit-Mods. These mods are made to make map making easier for newbies and give StarEdit more options. Each of the 5 modes is a different mod of StarEdit and has some special things. Please note that if you want to make special map projects you’ll need to use the modes in the right way. If you go back to another mode and open your map you might get errors and have to do some steps again.

Version 2.6 is newer, but some people prefer version 2.5. So, both versions are available here for you to choose the one you want to use.

  StarCraft X-tra Editor v2.5 (5.5 MiB, 143 hits)

  StarCraft X-tra Editor v2.6 (5.5 MiB, 131 hits)

This program lets you make a jpeg picture of a StarCraft map.

  Map to JPEG Converter v1.7 (228.8 KiB, 112 hits)

A StarCraft map editing tool that lets you copy a section of a map to another map.

  SCM Splicer v1.0 BETA (138.7 KiB, 92 hits)

This program converts any picture into a StarCraft map!

  StarCraft Picture Mapper v4.1 (1 MiB, 166 hits)

This is probably the best map editor for StarCraft.

Check out the list of features at the official site:
http://www.stormcoast-fortress.net/cntt/software/scmdraft/featuretable/

  Scmdraft 2 v0.8.0 (1005 KiB, 114 hits)

Here’s the newer version of Open Source Mapping Project… OSMAP2! This has a GUI interface so it’s easier to use.

  OSMAP2 v1.00m (113 KiB, 88 hits)

This program lets you open protected StarCraft maps so you can view them in map editors.

  Open Source Mapping Project (OSMAP) v1.10 (160.2 KiB, 74 hits)