Windows 7
Negative Screen
https://zerowidthjoiner.net/Uploads/negativescreen/Binary.zip
Windows 10
there is already present grayscale mode: from the Turn color filters on or off
Gnome:
install an extension called: Desaturate_all Note: to run the script successfully just comment the two lines:
// x_fill: true,
// y_fill: false, inside extension.js
https://extensions.gnome.org/
KDE:
https://github.com/ugjka/kwin-effect-grayscale
Ubuntu/Debian:
install: sudo apt install kwin-dev libkf5xmlgui-dev libkf5service-dev libkf5globalaccel-dev libkf5configwidgets-dev qt5-default
git clone https://github.com/ugjka/kwin-effect-grayscale.git cd kwin-effect-grayscale mkdir build && cd build cmake .. -DCMAKE_C_FLAGS:STRING="" -DCMAKE_CXX_FLAGS:STRING="" -DCMAKE_EXE_LINKER_FLAGS:STRING="" -DCMAKE_SHARED_LINKER_FLAGS:STRING="" -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_LIBDIR=lib make sudo make install
Then enable the grayscale color filter from Desktop Effects menu
LxQt:
create a filter file: grayscale.glsl with the following contents:
uniform float opacity;
uniform bool invert_color;
uniform sampler2D tex;
void main() {
vec4 c = texture2D(tex, gl_TexCoord[0].xy);
float y = dot(c.rgb, vec3(0.299, 0.587, 0.114));
// y = 1.0 -y;
gl_FragColor = vec4(y, y, y, 1.0);
}
then just apply the filter with:
compton --backend glx --glx-fshader-win "$(cat ./grayscale.glsl)"
Please enjoy a less distractive / addictive world.
