| # "kohlrausch" colour theme for mintty | |
| # | |
| # Copyright (C) 2022 Andy Koppe. | |
| # Licensed under the terms of the MIT License. | |
| # | |
| # This is a variant of the "helmholtz" theme that has been designed for use | |
| # with a dark text colour and light background, by darkening the foreground | |
| # variants of the normal colours and brightening the background ones. | |
| # | |
| # To level the colours, their luminance was calculated as follows: | |
| # - Gamma-expand the sRGB components by dividing each by 255 and applying the | |
| # sRGB transfer function (which approximately means applying exponent 2.2). | |
| # - Combine the components with formula Y = 0.2126 R + 0.7152 G + 0.0722 B. | |
| # - Gamma-compress with the reverse transfer function (approximately: apply | |
| # exponent 1/2.2). | |
| # | |
| # https://en.wikipedia.org/wiki/SRGB | |
| # | |
| # The colours were then adjusted to achieve equal luminance. However, that does | |
| # not actually yield colours with equal apparent brightness. This is due to the | |
| # "Helmholtz-Kohlrausch effect", which means that some saturated colours appear | |
| # brighter than others to the human eye. The theme is named after that. | |
| # | |
| # https://en.wikipedia.org/wiki/Helmholtz-Kohlrausch_effect | |
| # | |
| # There doesn't appear to be a generally valid model for compensating for the | |
| # effect, as it depends on observer, display device, and viewing environment. | |
| # Hence, correction factors were determined experimentally, ranging from 1.0 | |
| # for yellow to 1.45 for red, and the colour components adjusted accordingly. | |
| # Of course, that is a highly subjective process ... | |
| ForegroundColour=0,0,0 | |
| BackgroundColour=255,255,255 | |
| CursorColour=0,0,0 | |
| Black=0,0,0 | |
| Red=162,30,41;212,44,58 | |
| Green=21,126,0;28,168,0 | |
| Yellow=144,120,0;192,160,0 | |
| Blue=0,32,192;0,93,255 | |
| Magenta=134,54,150;177,72,198 | |
| Cyan=0,126,115;0,168,154 | |
| White=191,191,191 | |
| BoldBlack=96,96,96;127,127,127 | |
| BoldRed=255,118,118 | |
| BoldGreen=0,242,0 | |
| BoldYellow=242,242,0 | |
| BoldBlue=125,151,255 | |
| BoldMagenta=255,112,255 | |
| BoldCyan=0,240,240 | |
| BoldWhite=255,255,255 | |