Hi Traianus, nice looking Green Marble. Are you making the Civilopedia large and small for it too? You might want to Make the Resource smaller ...try 34 X 34 pixels at 72 or 300 pixels Resolution then copy and paste just the Resized Resource into the normal size frame. Note: Most game Resources are offset in on the Resource sheet more toward the Top Left of the Square. Check in the Game for the Resource Position in the Square before making the Shadows.
Also helpful to create palettes for the LARGE Strategic, Luxury and Bonus Resources that ONLY have the Background Colors. Then create the actual .pcx for each of those Large Backgrounds ONLY to use when you make a Civilopedia large .pcx of a new resource. This will keep the same exact Game Backgrounds on the new Resources. Since the Small Civilopedia .pcx files have a solid background, there is no need for this procedure for those.
There are x color shades on each Resource palette for the Background. Since we also apply Magenta 255, 0, 255 and Green 0, 255, 0 to the palette add these to the number of colors on the background palettes. Now because the Backgrounds also all have Pure white 255, 255, 255 and we will have the same pure white on the background of the new Resource as we make it...this can be ducted from the calculations for the number of colors we can use in the Resource and still keep the same backgrounds. Use 16 Million Colors when making the Resource and also when you paste it to the Backgrounds...use Pure White 255, 255, 255 as the Background for the new Resource as you make it and especially before pasting it to the background of the resource .pcx (set the pure white in the Background and Fill Properties Box so you will ONLY paste the New resource onto the Background .pcx).
256 colors minus background palette colors= x colors minus White= total colors besides white. (Note: after you reduce the Colors of the Resource to the number you can add to the background palette to equal 256 colors, edite the palette and then take a screenshot of the palette (Press ALT+ Print Screen) to get the palette Only and save as a .bmp to use with Pedit palette editor). Use Pedit to add those colors to the Background Palettes you make for the Resources. (Note: it is easier to just take screenshots of BOTH the Background palettes AND the Reduced color Resource palettes then open each .bmp palette image in Pedit and copy all colors to the black palette and save).When you add the new Resource colors, you don't add the Pure White again to the background palettes because it is already there. Save the palette as the Resource Name and Apply that palette (nearest color) to the 16 million color Resource that you already have positioned on the Background you made. Name and Save as .pcx. Hope this makes sense
If you take the time to make the Backgrounds for the Large Resource Icons and then make the palettes which you take screenshots of and save as .bmp images of the palettes...this will speed up making the Civilopedia Icons that will all then have the same game backgrounds.
W.i.n.t.e.r, are you wanting just Civilopedia Icons for those as Techs or do you want actual Resources for the Map and the Resource Icons? The reason I ask is as a Resource, you would have Gears or Ships on Rails all over your game map if those are made as Resources.
Also helpful to create palettes for the LARGE Strategic, Luxury and Bonus Resources that ONLY have the Background Colors. Then create the actual .pcx for each of those Large Backgrounds ONLY to use when you make a Civilopedia large .pcx of a new resource. This will keep the same exact Game Backgrounds on the new Resources. Since the Small Civilopedia .pcx files have a solid background, there is no need for this procedure for those.
There are x color shades on each Resource palette for the Background. Since we also apply Magenta 255, 0, 255 and Green 0, 255, 0 to the palette add these to the number of colors on the background palettes. Now because the Backgrounds also all have Pure white 255, 255, 255 and we will have the same pure white on the background of the new Resource as we make it...this can be ducted from the calculations for the number of colors we can use in the Resource and still keep the same backgrounds. Use 16 Million Colors when making the Resource and also when you paste it to the Backgrounds...use Pure White 255, 255, 255 as the Background for the new Resource as you make it and especially before pasting it to the background of the resource .pcx (set the pure white in the Background and Fill Properties Box so you will ONLY paste the New resource onto the Background .pcx).
256 colors minus background palette colors= x colors minus White= total colors besides white. (Note: after you reduce the Colors of the Resource to the number you can add to the background palette to equal 256 colors, edite the palette and then take a screenshot of the palette (Press ALT+ Print Screen) to get the palette Only and save as a .bmp to use with Pedit palette editor). Use Pedit to add those colors to the Background Palettes you make for the Resources. (Note: it is easier to just take screenshots of BOTH the Background palettes AND the Reduced color Resource palettes then open each .bmp palette image in Pedit and copy all colors to the black palette and save).When you add the new Resource colors, you don't add the Pure White again to the background palettes because it is already there. Save the palette as the Resource Name and Apply that palette (nearest color) to the 16 million color Resource that you already have positioned on the Background you made. Name and Save as .pcx. Hope this makes sense

W.i.n.t.e.r, are you wanting just Civilopedia Icons for those as Techs or do you want actual Resources for the Map and the Resource Icons? The reason I ask is as a Resource, you would have Gears or Ships on Rails all over your game map if those are made as Resources.