How to generate colors for Surface pages

(back up to the Main Page)...back up to the How To Illustrate Page

*In-story, the following information is determined by probes with calibrated cameras.*

(Colors are described using the standardized names given at https://www.computerhope.com/htmcolor.htm , a slash, and then the "hexadecimal triplet" codes for amounts of red, green, and blue. The hexadecimal triplet code is always all-capitals, and is preceded by a #. For a random color, use https://www.computerhope.com/tips/tip143.htm )

SKY COLOR: Randomly generate three. Of these, select the one that you think works best with the planet illustration. Consider how Earth's blue sky is not what the color of Earth is in a photo taken from space.
Example: Baby Blue/#95B9C7

CLOUD COLOR: Roll a d20.

On a 1, the clouds are "Strange". Use Color Picker to generate a random color.

On a 2-7, the clouds are "Darkened". Use Color Picker to generate a random color. Subtract half of each of these R, G, and B values from the matching values of the Sky color. Round to the nearest whole number. If a value goes below 00, leave it 00. Example: (The sky is #A7 A7 A7. The randomly generated color is #04 06 02. Half of that is #02,03,01. The cloud color will be #A5 A4 A6) #A5A4A6

On a 8-9, the clouds are "Very Dark". Use Color Picker to generate a random color. Subtract each of these R, G, and B values from the matching values of the Sky color. If a value goes below 00, leave it 00.

On a 10-15, "Lightened". Generate a random color. Add half R, G, and B values to the matching values of the Sky color. Round to the nearest whole number. If one goes past EE, just leave it EE.

On a 16-17, "Much Lighter". Generate a random color. Add the R, G, and B values to the matching values of the Sky color. Round to the nearest whole number. If one goes past EE, just leave it EE.

On an 18, the clouds are "Dirty". Generate a random color, and add the R, G, B values to the matching values of the GROUND color.

On a 19, the clouds are "Brightened". Average the Sky color with #CE CE CE (14 16, 14 16, 14 16). If it goes past EE, just leave it EE.

On a 20, the clouds are "Eccentric". Just roll a completely random color.

GROUND COLOR: This is the main color of the rock or the Manda Floatation Layer (MFL).The MFL is the layer at which a 200kg sphere will still float halfway in. Randomly generate three. Of these, select the one that you think works best with the planet illustration. Example: Slate Gray/#657383

BIOSURFACE COLOR: This is a color that is present because of a veneer of life forms. Earth's would be the green of the photosynthesizing land plants. Note that such life is not necessarily visible. For example, part of Earth's oxygen-producing life forms are the extremely thin layer of ocean-surface diatoms, plus the seldom-mentioned land diatoms.

FLUID COLOR: Roll a d10. On a 20, there is a presence of Fluid that is obvious even from a telescope image. That world has liquid "water", analogous to Earth's oceans. Use the Cloud Color rules, but instead of Sky, use Ground as the base.

FLUID PERCENTAGE: (This is only rolled if the Fluid Color roll was a 20.) This is how much of the planet's surface is Fluid.