Use simple word theme to differentiate two browsers: firefox and Microsoft Edge

 See the instructions in my Onedrive 应用 folder: Browser-themes-README.txt

How to adjust the Firefox tab bar tabbar height and width

 Followed the instruction here:

GitHub - dannycolin/ff-ultra-compact-mode: A Better Compact Mode for Firefox Proton

1. Type about:config in the address bar and press Enter/Return.
2. Click the button accepting the risk.
3. In the search box above the list, type or paste toolkit.legacyUserProfileCustomizations.stylesheets.
4. Double-click the toolkit.legacyUserProfileCustomizations.stylesheets preference to switch the value from false to true.
5. Now, search for browser.compactmode.show and set it to true.
6. Close about:config tab.
7. Open your profile folder (See How do I find my profile?)
8. Go to chrome folder or create it if it doesn't exist
9. Copy/Paste the userChrome.css file from this repository inside the chrome folder.
10. Go to ... | More Tools | Customize Toolbar | Density to Compact

userChrome.css file content:

:root {

  /* Appmenu: Reduce item padding */

  --arrowpanel-menuitem-padding-block: 4px 8px !important;

  /* Tabbar: reduce tab margin */

  --tab-block-margin: 4px 3px !important;

  /* Set minimum width below which tabs will not shrink (minimum 22px) */

  --my-tab-min-width: 10px;

}

/* Essential rule for reducing minimum tab width */

.tabbrowser-tab:not([pinned]){

  min-width: var(--my-tab-min-width) !important;

}

/* Optional rules for widths below 40px */

/* Reduce icon's right margin for less wasted space */

.tabbrowser-tab:not([pinned]) .tab-icon-image {

  margin-right: 1px !important;

}

/* Adjust padding for better centering and less wasted space */

.tabbrowser-tab:not([pinned]) .tab-content{

  padding-left: calc((var(--my-tab-min-width) - 22px)/2) !important;

  padding-right: calc((var(--my-tab-min-width) - 22px)/2) !important;

}

/* Reduce close button's padding for less wasted space */

.tab-close-button.close-icon {

  padding-left: 0 !important;

  padding-right: 3px !important;

}

/* Tab: Reduce height */

.tabbrowser-tab {

  min-height: 24px !important;

}

/* URLBar: Fix vertical alignment */

#urlbar[breakout=true]:not([open="true"]) {

--urlbar-height: 20px !important;

--urlbar-toolbar-height: 24px !important;

}

/* Toolbar: Reduce spacing */

#urlbar-container {

--urlbar-container-height: 30px !important;

  margin-top: 0 !important;

}

/* Reload Button: Fix vertical alignment */

#reload-button {

margin-block-start: -2px !important;

}

.tabbrowser-tab .tab-context-line {

    margin: -3px 0px !important;

    background-color: #76B900;

    height: 3px;

}

.tabbrowser-tab[selected="true"] .tab-context-line {

    margin: -3px 0px !important;

    background-color: red;

    height: 3px;

}

Google doc 谷歌文档 在Microsoft Edge浏览器环境下用搜狗输入法不能输入中文

 原来是搜狗输入法的版本过低，升级搜狗输入法的版本到10.4之后就可以正常输入中文了

How to root Samsung Galaxy Tab S6 Lite SM-P610 P610ZCU2CUC4

 What worked?

I mainly used the instructions in this article: https://techorfy.com/root-samsung-galaxy-tab-s6-lite/

Main take-aways:

1. The tablet/phone bootloader must be unlocked (In the developer options OEM解锁)

2. Used Magisk app to patch the boot.img file and replace the one in the factory stock AP*** file. Used Odin to refresh the files to the tablet. TWRP was not needed and used.

3. Some useful tips: To enter the tablet download mode: press volume UP + volume DOWN buttons, then plugin the power cable.

How to adjust Linux Ubuntu 18.04 screen brightness

sudo apt install  brightnessctl

sudo brightnessctl set 20%

How to cross-compile boost for QNX 7.0

# For QNX OS, use the following commands:

```

./bootstrap.sh --prefix=~/install --without-icu \

    --with-libraries=atomic,filesystem,serialization,graph,graph_parallel,iostreams,log,math,system,thread,date_time,regex,timer,chrono,program_options

# For QNX x86_64:

./b2 toolset=qcc target-os=qnxnto link=static cxxflags=-fPIC cflags=-fPIC \

--disable-icu -s NO_BZIP2=1 -j32 install

# For QNX aarch64:

./b2 toolset=qcc target-os=qnxnto link=static --disable-icu  \

cxxflags="-Vgcc_ntoaarch64le -Y_gpp -Wc,-std=gnu++0x -D_LITTLE_ENDIAN" \

linkflags="-Vgcc_ntoaarch64le -Y_gpp -lang-c++" -j32 install

# To clean up built binaries

./b2 --clean-all -n

``` 

Regular Expression Commonly Used Patterns

# Find a line that starts with DW_API_PUBLIC or DW_VIZ_API_PUBLIC

pattern = re.compile(r'^(?:DW_API_PUBLIC|DW_VIZ_API_PUBLIC).*?;',

                     re.DOTALL | re.MULTILINE)

matches = pattern.findall(self._content)