A little late here, but you should mention that the colours in which the text show up in VX and VXA are determined by the colour palette in the windowskin. The colour palette are the 32 colours in the lower right hand corner of the windowskin graphics, as shown in the attachment. The order is as follows:
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
Changing the colours in the palette don't only affect the colours you can choose either, but some of those colours are set to other aspects of the game. Colour 0 is the normal colour for all text (things like the name of items in the equipment or inventory scene), while colour 16 is the system colour (things like the names of the equipment slots). Those are the most important colours in the palette, but other colours are used for other things in the game as well. In VXA for instance, these colours are:
- Normal Colour - Colour 0
- System Colour - Colour 16
- Crisis (Low Health) Colour - Colour 17
- Knockout (Dead) Colour - Colour 18
- Gauge Back Colour - Colour 19
- HP Gauge Colour 1 - Colour 20
- HP Gauge Colour 2 - Colour 21
- MP Gauge Colour 1 - Colour 22
- MP Gauge Colour 2 - Colour 23
- MP Cost Colour - Colour 23
- Power Up Colour - Colour 24
- Power Down Colour - Colour 25
- TP Gauge Colour 1 - Colour 28
- TP Gauge Colour 2 - Colour 29
- TP Cost Colour - Colour 29
With the exception of the TP colours and the MP cost colour, the same list goes for VX. So if you are changing those colours of the palette, you'll have to be aware that you are also changing the colours of those in-game colours.
I don't remember if you can change the colour palettes in XP or 2k3.
As for the VXA database, the only things that the colour codes work for by default are things like item descriptions that would show up in help windows (and the actor description as well). They actually don't work for things like item names or the vocabulary terms.
All in all though, it's a nice tutorial - it is good to draw people's attention to this feature.