diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
deleted file mode 100644
index e008a9b8..00000000
--- a/.github/workflows/codeql.yml
+++ /dev/null
@@ -1,74 +0,0 @@
-# For most projects, this workflow file will not need changing; you simply need
-# to commit it to your repository.
-#
-# You may wish to alter this file to override the set of languages analyzed,
-# or to provide custom queries or build logic.
-#
-# ******** NOTE ********
-# We have attempted to detect the languages in your repository. Please check
-# the `language` matrix defined below to confirm you have the correct set of
-# supported CodeQL languages.
-#
-name: "CodeQL"
-
-on:
-  push:
-    branches: [ "main" ]
-  pull_request:
-    # The branches below must be a subset of the branches above
-    branches: [ "main" ]
-
-jobs:
-  analyze:
-    name: Analyze
-    runs-on: ubuntu-latest
-    permissions:
-      actions: read
-      contents: read
-      security-events: write
-
-    strategy:
-      fail-fast: false
-      matrix:
-        language: [ 'python' ]
-        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
-        # Use only 'java' to analyze code written in Java, Kotlin or both
-        # Use only 'javascript' to analyze code written in JavaScript, TypeScript or both
-        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
-
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v3
-
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
-      with:
-        languages: ${{ matrix.language }}
-        # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file.
-        # Prefix the list here with "+" to use these queries and those in the config file.
-
-        # Details on CodeQL's query packs refer to : https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
-        # queries: security-extended,security-and-quality
-
-
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, Go, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v2
-
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
-
-    #   If the Autobuild fails above, remove it and uncomment the following three lines.
-    #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
-
-    # - run: |
-    #   echo "Run, Build Application using script"
-    #   ./location_of_script_within_repo/buildscript.sh
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
-      with:
-        category: "/language:${{matrix.language}}"
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
deleted file mode 100644
index fe461b42..00000000
--- a/.github/workflows/dependency-review.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-# Dependency Review Action
-#
-# This Action will scan dependency manifest files that change as part of a Pull Request, surfacing known-vulnerable versions of the packages declared or updated in the PR. Once installed, if the workflow run is marked as required, PRs introducing known-vulnerable packages will be blocked from merging.
-#
-# Source repository: https://github.com/actions/dependency-review-action
-# Public documentation: https://docs.github.com/en/code-security/supply-chain-security/understanding-your-software-supply-chain/about-dependency-review#dependency-review-enforcement
-name: 'Dependency Review'
-on: [pull_request]
-
-permissions:
-  contents: read
-
-jobs:
-  dependency-review:
-    runs-on: ubuntu-latest
-    steps:
-      - name: 'Checkout Repository'
-        uses: actions/checkout@v3
-      - name: 'Dependency Review'
-        uses: actions/dependency-review-action@v2
diff --git a/.github/workflows/lint-flake8.yml b/.github/workflows/lint-flake8.yml
deleted file mode 100644
index 75d098a5..00000000
--- a/.github/workflows/lint-flake8.yml
+++ /dev/null
@@ -1,37 +0,0 @@
-name: Lint with flake8
-
-on:
-  push:
-    branches:
-      - main
-      - 'releases/**'
-  pull_request:
-
-jobs:
-  lint-flake8:
-
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python 3.x
-      uses: actions/setup-python@v3
-      with:
-        python-version: '3.x'
-
-    - name: Display Python version
-      run: python -c "import sys; print(sys.version)"
-
-    - name: Install flake8
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install flake8
-
-    - name: Lint with flake8
-      run: |
-        # stop the build if there are Python syntax errors or undefined names
-        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
diff --git a/.github/workflows/simple-program-linux.yml b/.github/workflows/simple-program-linux.yml
index bdc941f6..91464dbb 100644
--- a/.github/workflows/simple-program-linux.yml
+++ b/.github/workflows/simple-program-linux.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.7", "3.11"]
 
     steps:
     - uses: actions/checkout@v3
diff --git a/.github/workflows/simple-program-macos.yml b/.github/workflows/simple-program-macos.yml
deleted file mode 100644
index b12a1c18..00000000
--- a/.github/workflows/simple-program-macos.yml
+++ /dev/null
@@ -1,65 +0,0 @@
-name: Simple program (MacOS)
-
-on:
-  push:
-    branches:
-      - main
-      - 'releases/**'
-  pull_request:
-
-jobs:
-  simple-program:
-
-    runs-on: macos-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
-      with:
-        python-version: ${{ matrix.python-version }}
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install -r requirements.txt
-
-    - name: Run simple-program.py during 20 seconds
-      run: |
-        # For tests there is no real HW: use simulated LCD mode
-        sed -i "" "s|^REVISION.*$|REVISION=\"SIMU\"|g" simple-program.py
-        
-        # Run the program for 20s
-        python3 simple-program.py > output.log 2>&1 &
-        sleep 20
-
-    - name: Check output for errors
-      run: |
-        echo "######## Output : ########"
-        cat output.log
-        
-        if grep -qi "error" output.log; then
-          echo "Program failed to run, see output above"
-          false
-        elif grep -qi "traceback" output.log; then
-          echo "Program failed to run, see output above"
-          false
-        elif grep -qi "exception" output.log; then
-          echo "Program failed to run, see output above"
-          false
-        fi
-
-    - name: Prepare screenshot for archiving
-      run: |
-        cp screencap.png screenshot-py${{ matrix.python-version }}.png
-
-    - name: Archive a screenshot
-      uses: actions/upload-artifact@v3
-      with:
-        name: screenshot-py${{ matrix.python-version }}
-        path: screenshot-*.png
\ No newline at end of file
diff --git a/.github/workflows/simple-program-windows.yml b/.github/workflows/simple-program-windows.yml
deleted file mode 100644
index d0054f22..00000000
--- a/.github/workflows/simple-program-windows.yml
+++ /dev/null
@@ -1,71 +0,0 @@
-name: Simple program (Windows)
-
-on:
-  push:
-    branches:
-      - main
-      - 'releases/**'
-  pull_request:
-
-jobs:
-  simple-program:
-
-    runs-on: windows-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
-      with:
-        python-version: ${{ matrix.python-version }}
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install -r requirements.txt
-
-    - name: Run simple-program.py during 20 seconds
-      run: |
-        # For tests there is no real HW: use simulated LCD mode
-        (Get-Content simple-program.py) -replace "^REVISION.*$","REVISION=`"SIMU`"" | Set-Content  simple-program.py
-        
-        # Run the program for 20s
-        Start-Process -NoNewWindow python3 simple-program.py -RedirectStandardOutput output.log -RedirectStandardError error.log
-        sleep 20
-        add-content output.log (get-content error.log)
-
-    - name: Check output for errors
-      run: |
-        echo "######## Output : ########"
-        cat output.log
-        
-        $SEL = Select-String -Path output.log -Pattern "error"
-        if ($SEL -ne $null)
-        {
-            throw "Program failed to run, see output above"
-        }
-        $SEL = Select-String -Path output.log -Pattern "traceback"
-        if ($SEL -ne $null)
-        {
-            throw "Program failed to run, see output above"
-        }
-        $SEL = Select-String -Path output.log -Pattern "exception"
-        if ($SEL -ne $null)
-        {
-            throw "Program failed to run, see output above"
-        }
-
-    - name: Prepare screenshot for archiving
-      run: |
-        cp screencap.png screenshot-py${{ matrix.python-version }}.png
-
-    - name: Archive a screenshot
-      uses: actions/upload-artifact@v3
-      with:
-        name: screenshot-py${{ matrix.python-version }}
-        path: screenshot-*.png
diff --git a/.github/workflows/system-monitor-linux.yml b/.github/workflows/system-monitor-linux.yml
deleted file mode 100644
index 12e1e576..00000000
--- a/.github/workflows/system-monitor-linux.yml
+++ /dev/null
@@ -1,73 +0,0 @@
-name: System monitor (Linux)
-
-on:
-  push:
-    branches:
-      - main
-      - 'releases/**'
-  pull_request:
-
-jobs:
-  system-monitor:
-
-    runs-on: ubuntu-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
-        theme: [ "3.5inchTheme2", "Cyberpunk", "Landscape6Grid", "Terminal", "bash-dark-green", "bash-dark-green-gpu",
-                 "LandscapeMagicBlue", "BigClock" ]
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
-      with:
-        python-version: ${{ matrix.python-version }}
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install Cython   # Because of a bug with Python 3.11, Cython must be installed first manually
-        python -m pip install -r requirements.txt
-
-    - name: Configure system monitor
-      run: |
-        # For tests there is no real HW: use simulated LCD mode
-        sed -i "/REVISION:/c\  REVISION: SIMU" config.yaml
-        
-        # Setup selected theme in config.yaml
-        echo "Using theme ${{ matrix.theme }}"
-        sed -i "/THEME:/c\  THEME: ${{ matrix.theme }}" config.yaml
-
-    - name: Run system monitor for 20 seconds
-      run: |
-        python3 main.py > output.log 2>&1 &
-        sleep 20
-
-    - name: Check output for errors
-      run: |
-        echo "######## Output : ########"
-        cat output.log
-        
-        if grep -qi "error" output.log; then
-          echo "Program failed to run, see output above"
-          false
-        elif grep -qi "traceback" output.log; then
-          echo "Program failed to run, see output above"
-          false
-        elif grep -qi "exception" output.log; then
-          echo "Program failed to run, see output above"
-          false
-        fi
-
-    - name: Prepare screenshot for archiving
-      run: |
-        cp screencap.png screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}.png
-
-    - name: Archive a screenshot
-      uses: actions/upload-artifact@v3
-      with:
-        name: screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}
-        path: screenshot-*.png
\ No newline at end of file
diff --git a/.github/workflows/system-monitor-macos.yml b/.github/workflows/system-monitor-macos.yml
deleted file mode 100644
index 8f32753e..00000000
--- a/.github/workflows/system-monitor-macos.yml
+++ /dev/null
@@ -1,72 +0,0 @@
-name: System monitor (MacOS)
-
-on:
-  push:
-    branches:
-      - main
-      - 'releases/**'
-  pull_request:
-
-jobs:
-  system-monitor:
-
-    runs-on: macos-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
-        theme: [ "3.5inchTheme2", "Cyberpunk", "Landscape6Grid", "Terminal", "bash-dark-green", "bash-dark-green-gpu",
-                 "LandscapeMagicBlue", "BigClock" ]
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
-      with:
-        python-version: ${{ matrix.python-version }}
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install -r requirements.txt
-
-    - name: Configure system monitor
-      run: |
-        # For tests there is no real HW: use simulated LCD mode
-        sed -i "" "s|^  REVISION.*$|  REVISION: SIMU|g" config.yaml
-        
-        # Setup selected theme in config.yaml
-        echo "Using theme ${{ matrix.theme }}"
-        sed -i "" "s|^  THEME.*$|  THEME: ${{ matrix.theme }}|g" config.yaml
-
-    - name: Run system monitor for 20 seconds
-      run: |
-        python3 main.py > output.log 2>&1 &
-        sleep 20
-
-    - name: Check output for errors
-      run: |
-        echo "######## Output : ########"
-        cat output.log
-        
-        if grep -qi "error" output.log; then
-          echo "Program failed to run, see output above"
-          false
-        elif grep -qi "traceback" output.log; then
-          echo "Program failed to run, see output above"
-          false
-        elif grep -qi "exception" output.log; then
-          echo "Program failed to run, see output above"
-          false
-        fi
-
-    - name: Prepare screenshot for archiving
-      run: |
-        cp screencap.png screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}.png
-
-    - name: Archive a screenshot
-      uses: actions/upload-artifact@v3
-      with:
-        name: screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}
-        path: screenshot-*.png
\ No newline at end of file
diff --git a/.github/workflows/system-monitor-windows.yml b/.github/workflows/system-monitor-windows.yml
deleted file mode 100644
index 30088467..00000000
--- a/.github/workflows/system-monitor-windows.yml
+++ /dev/null
@@ -1,81 +0,0 @@
-name: System monitor (Windows)
-
-on:
-  push:
-    branches:
-      - main
-      - 'releases/**'
-  pull_request:
-
-jobs:
-  system-monitor:
-
-    runs-on: windows-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
-        theme: [ "3.5inchTheme2", "Cyberpunk", "Landscape6Grid", "Terminal", "bash-dark-green", "bash-dark-green-gpu",
-                 "LandscapeMagicBlue", "BigClock" ]
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
-      with:
-        python-version: ${{ matrix.python-version }}
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install -r requirements.txt
-
-    - name: Configure system monitor
-      run: |
-        # For tests there is no real HW: use simulated LCD mode
-        (Get-Content config.yaml) -replace "^  REVISION.*$","  REVISION: SIMU" | Set-Content  config.yaml
-        
-        # Setup selected theme in config.yaml
-        echo "Using theme ${{ matrix.theme }}"
-        (Get-Content config.yaml) -replace "^  THEME.*$","  THEME: ${{ matrix.theme }}" | Set-Content  config.yaml
-
-        # For tests do not use LibreHardwareMonitor as it needs admin rights
-        (Get-Content config.yaml) -replace "^  HW_SENSORS.*$","  HW_SENSORS: PYTHON" | Set-Content  config.yaml
-
-    - name: Run system monitor for 20 seconds
-      run: |
-        Start-Process -NoNewWindow python3 main.py -RedirectStandardOutput output.log -RedirectStandardError error.log
-        sleep 20
-        add-content output.log (get-content error.log)
-
-    - name: Check output for errors
-      run: |
-        echo "######## Output : ########"
-        cat output.log
-        
-        $SEL = Select-String -Path output.log -Pattern "error"
-        if ($SEL -ne $null)
-        {
-            throw "Program failed to run, see output above"
-        }
-        $SEL = Select-String -Path output.log -Pattern "traceback"
-        if ($SEL -ne $null)
-        {
-            throw "Program failed to run, see output above"
-        }
-        $SEL = Select-String -Path output.log -Pattern "exception"
-        if ($SEL -ne $null)
-        {
-            throw "Program failed to run, see output above"
-        }
-
-    - name: Prepare screenshot for archiving
-      run: |
-        cp screencap.png screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}.png
-
-    - name: Archive a screenshot
-      uses: actions/upload-artifact@v3
-      with:
-        name: screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}
-        path: screenshot-*.png