The Palette Editor allows you to change many of the palettes (colors) used in the game.
To activate the palette editor: Click the Palette Editor button in the SHWP-II Editor toolbar (it looks like Windows 3.1's Paintbrush icon).
To edit the palettes, first click a palette name. (Don't click a "-" palette - it is used as a separator to separate out sections, but internally it refers to a palette that does not exist in the ROM at address 0xFFFFFF. If you save a "-" palette, you could risk having the ROM taking up 16MB. This problem will be fixed in a later version.) Next, click a color in that palette that you want to edit. Use the RGB scrollbars to adjust the sub-colors used in the color. A preview of that color will appear in the rectangle right underneath the palette. Finally, click the SAVE button to save the new palette.
Color component switcher - to switch color component values (i.e. flip the values of red and green, green and blue, etc.), right click the color label next to one of the RGB scrollbars. In the popup menu, click the other color that you want to flip the color value with. The color components will be switched.
New feature in SHWP-II v.0012: For more precise editing, the value of the color components is now shown in the color labels next to the scrollbar. Before, this used to say either "R", "G", or "B".